Finding the Fourth Proportional to 1,063.43, 1,596.30 and 784.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,063.43 : 1,596.30 = 784.91 : x
2. Step 2: Convert to fraction form
   1,063.43/1,596.30 = 784.91/x
3. Step 3: Cross multiply
   1,063.43x = 1,596.30 × 784.91
4. Step 4: Simplify right side
   1,063.43x = 1,252,951.83
5. Step 5: Solve for x
   x = 1,252,951.83/1,063.43
6. Step 6: Final answer
   x = 1,178.22