Finding the Fourth Proportional to 1,100.31, 1,517.85 and 651.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.31 : 1,517.85 = 651.92 : x
2. Step 2: Convert to fraction form
   1,100.31/1,517.85 = 651.92/x
3. Step 3: Cross multiply
   1,100.31x = 1,517.85 × 651.92
4. Step 4: Simplify right side
   1,100.31x = 989,516.77
5. Step 5: Solve for x
   x = 989,516.77/1,100.31
6. Step 6: Final answer
   x = 899.31