Finding the Fourth Proportional to 1,158.96, 1,737.12 and 671.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,158.96 : 1,737.12 = 671.52 : x
2. Step 2: Convert to fraction form
   1,158.96/1,737.12 = 671.52/x
3. Step 3: Cross multiply
   1,158.96x = 1,737.12 × 671.52
4. Step 4: Simplify right side
   1,158.96x = 1,166,510.82
5. Step 5: Solve for x
   x = 1,166,510.82/1,158.96
6. Step 6: Final answer
   x = 1,006.52