Finding the Fourth Proportional to 2,157,776.25, 2,977,716.55 and 1,190,906.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,157,776.25 : 2,977,716.55 = 1,190,906.52 : x
2. Step 2: Convert to fraction form
   2,157,776.25/2,977,716.55 = 1,190,906.52/x
3. Step 3: Cross multiply
   2,157,776.25x = 2,977,716.55 × 1,190,906.52
4. Step 4: Simplify right side
   2,157,776.25x = 3,546,182,042,196.15
5. Step 5: Solve for x
   x = 3,546,182,042,196.15/2,157,776.25
6. Step 6: Final answer
   x = 1,643,442.90