Finding the Fourth Proportional to 1,116.18, 1,539.82 and 723.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,116.18 : 1,539.82 = 723.34 : x
2. Step 2: Convert to fraction form
   1,116.18/1,539.82 = 723.34/x
3. Step 3: Cross multiply
   1,116.18x = 1,539.82 × 723.34
4. Step 4: Simplify right side
   1,116.18x = 1,113,813.40
5. Step 5: Solve for x
   x = 1,113,813.40/1,116.18
6. Step 6: Final answer
   x = 997.88