Finding the Fourth Proportional to 1,092.42, 1,629.72 and 974.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,092.42 : 1,629.72 = 974.88 : x
2. Step 2: Convert to fraction form
   1,092.42/1,629.72 = 974.88/x
3. Step 3: Cross multiply
   1,092.42x = 1,629.72 × 974.88
4. Step 4: Simplify right side
   1,092.42x = 1,588,781.43
5. Step 5: Solve for x
   x = 1,588,781.43/1,092.42
6. Step 6: Final answer
   x = 1,454.37