Finding the Fourth Proportional to 1,131,314.76, 1,561,243.92 and 615,103.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131,314.76 : 1,561,243.92 = 615,103.38 : x
2. Step 2: Convert to fraction form
   1,131,314.76/1,561,243.92 = 615,103.38/x
3. Step 3: Cross multiply
   1,131,314.76x = 1,561,243.92 × 615,103.38
4. Step 4: Simplify right side
   1,131,314.76x = 960,326,412,196.45
5. Step 5: Solve for x
   x = 960,326,412,196.45/1,131,314.76
6. Step 6: Final answer
   x = 848,858.73