Finding the Fourth Proportional to 2,190,922,448.99, 3,023,546,098.91 and 1,200,850,402.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,190,922,448.99 : 3,023,546,098.91 = 1,200,850,402.91 : x
2. Step 2: Convert to fraction form
   2,190,922,448.99/3,023,546,098.91 = 1,200,850,402.91/x
3. Step 3: Cross multiply
   2,190,922,448.99x = 3,023,546,098.91 × 1,200,850,402.91
4. Step 4: Simplify right side
   2,190,922,448.99x = 3,630,826,551,071,910,400
5. Step 5: Solve for x
   x = 3,630,826,551,071,910,400/2,190,922,448.99
6. Step 6: Final answer
   x = 1,657,213,632.89