Finding the Fourth Proportional to 1,098,617.63, 1,516,221.72 and 615,089.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,098,617.63 : 1,516,221.72 = 615,089.34 : x
2. Step 2: Convert to fraction form
   1,098,617.63/1,516,221.72 = 615,089.34/x
3. Step 3: Cross multiply
   1,098,617.63x = 1,516,221.72 × 615,089.34
4. Step 4: Simplify right side
   1,098,617.63x = 932,611,817,048.47
5. Step 5: Solve for x
   x = 932,611,817,048.47/1,098,617.63
6. Step 6: Final answer
   x = 848,895.74