Finding the Fourth Proportional to 1,158.48, 1,598.61 and 634.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,158.48 : 1,598.61 = 634.53 : x
2. Step 2: Convert to fraction form
   1,158.48/1,598.61 = 634.53/x
3. Step 3: Cross multiply
   1,158.48x = 1,598.61 × 634.53
4. Step 4: Simplify right side
   1,158.48x = 1,014,366.00
5. Step 5: Solve for x
   x = 1,014,366.00/1,158.48
6. Step 6: Final answer
   x = 875.60