Finding the Fourth Proportional to 1,131,355.87, 1,561,301.71 and 615,144.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131,355.87 : 1,561,301.71 = 615,144.42 : x
2. Step 2: Convert to fraction form
   1,131,355.87/1,561,301.71 = 615,144.42/x
3. Step 3: Cross multiply
   1,131,355.87x = 1,561,301.71 × 615,144.42
4. Step 4: Simplify right side
   1,131,355.87x = 960,426,027,036.45
5. Step 5: Solve for x
   x = 960,426,027,036.45/1,131,355.87
6. Step 6: Final answer
   x = 848,915.94