Finding the Fourth Proportional to 1,099,389.70, 1,517,199.50 and 615,938.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,099,389.70 : 1,517,199.50 = 615,938.32 : x
2. Step 2: Convert to fraction form
   1,099,389.70/1,517,199.50 = 615,938.32/x
3. Step 3: Cross multiply
   1,099,389.70x = 1,517,199.50 × 615,938.32
4. Step 4: Simplify right side
   1,099,389.70x = 934,501,300,469.15
5. Step 5: Solve for x
   x = 934,501,300,469.15/1,099,389.70
6. Step 6: Final answer
   x = 850,018.25