Finding the Fourth Proportional to 1,158.02, 1,598.06 and 634.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,158.02 : 1,598.06 = 634.05 : x
2. Step 2: Convert to fraction form
   1,158.02/1,598.06 = 634.05/x
3. Step 3: Cross multiply
   1,158.02x = 1,598.06 × 634.05
4. Step 4: Simplify right side
   1,158.02x = 1,013,249.94
5. Step 5: Solve for x
   x = 1,013,249.94/1,158.02
6. Step 6: Final answer
   x = 874.98