Finding the Fourth Proportional to 1,125,081.72, 1,552,612.79 and 615,784.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,125,081.72 : 1,552,612.79 = 615,784.09 : x
2. Step 2: Convert to fraction form
   1,125,081.72/1,552,612.79 = 615,784.09/x
3. Step 3: Cross multiply
   1,125,081.72x = 1,552,612.79 × 615,784.09
4. Step 4: Simplify right side
   1,125,081.72x = 956,074,254,012.51
5. Step 5: Solve for x
   x = 956,074,254,012.51/1,125,081.72
6. Step 6: Final answer
   x = 849,782.05