Finding the Fourth Proportional to 1,158.85, 1,599.46 and 739.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,158.85 : 1,599.46 = 739.10 : x
2. Step 2: Convert to fraction form
   1,158.85/1,599.46 = 739.10/x
3. Step 3: Cross multiply
   1,158.85x = 1,599.46 × 739.10
4. Step 4: Simplify right side
   1,158.85x = 1,182,160.89
5. Step 5: Solve for x
   x = 1,182,160.89/1,158.85
6. Step 6: Final answer
   x = 1,020.12