Finding the Fourth Proportional to 2,112,449.82, 2,915,129.42 and 1,206,973.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112,449.82 : 2,915,129.42 = 1,206,973.50 : x
2. Step 2: Convert to fraction form
   2,112,449.82/2,915,129.42 = 1,206,973.50/x
3. Step 3: Cross multiply
   2,112,449.82x = 2,915,129.42 × 1,206,973.50
4. Step 4: Simplify right side
   2,112,449.82x = 3,518,483,959,010.37
5. Step 5: Solve for x
   x = 3,518,483,959,010.37/2,112,449.82
6. Step 6: Final answer
   x = 1,665,594.10