Finding the Fourth Proportional to 1,147.91, 1,710.46 and 1,092.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,147.91 : 1,710.46 = 1,092.12 : x
2. Step 2: Convert to fraction form
   1,147.91/1,710.46 = 1,092.12/x
3. Step 3: Cross multiply
   1,147.91x = 1,710.46 × 1,092.12
4. Step 4: Simplify right side
   1,147.91x = 1,868,024.84
5. Step 5: Solve for x
   x = 1,868,024.84/1,147.91
6. Step 6: Final answer
   x = 1,627.33