Finding the Fourth Proportional to 1,585.43, 2,377.98 and 707.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,585.43 : 2,377.98 = 707.96 : x
2. Step 2: Convert to fraction form
   1,585.43/2,377.98 = 707.96/x
3. Step 3: Cross multiply
   1,585.43x = 2,377.98 × 707.96
4. Step 4: Simplify right side
   1,585.43x = 1,683,502.83
5. Step 5: Solve for x
   x = 1,683,502.83/1,585.43
6. Step 6: Final answer
   x = 1,061.86