Finding the Fourth Proportional to 1,127.46, 1,689.84 and 606.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,127.46 : 1,689.84 = 606.72 : x
2. Step 2: Convert to fraction form
   1,127.46/1,689.84 = 606.72/x
3. Step 3: Cross multiply
   1,127.46x = 1,689.84 × 606.72
4. Step 4: Simplify right side
   1,127.46x = 1,025,259.72
5. Step 5: Solve for x
   x = 1,025,259.72/1,127.46
6. Step 6: Final answer
   x = 909.35