Finding the Fourth Proportional to 1,689.35, 2,332.33 and 1,092.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,689.35 : 2,332.33 = 1,092.15 : x
2. Step 2: Convert to fraction form
   1,689.35/2,332.33 = 1,092.15/x
3. Step 3: Cross multiply
   1,689.35x = 2,332.33 × 1,092.15
4. Step 4: Simplify right side
   1,689.35x = 2,547,251.48
5. Step 5: Solve for x
   x = 2,547,251.48/1,689.35
6. Step 6: Final answer
   x = 1,507.83