Finding the Fourth Proportional to 1,157.54, 1,597.40 and 633.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,157.54 : 1,597.40 = 633.57 : x
2. Step 2: Convert to fraction form
   1,157.54/1,597.40 = 633.57/x
3. Step 3: Cross multiply
   1,157.54x = 1,597.40 × 633.57
4. Step 4: Simplify right side
   1,157.54x = 1,012,064.72
5. Step 5: Solve for x
   x = 1,012,064.72/1,157.54
6. Step 6: Final answer
   x = 874.32