Finding the Fourth Proportional to 1,706.47, 2,353.52 and 1,042.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,706.47 : 2,353.52 = 1,042.88 : x
2. Step 2: Convert to fraction form
   1,706.47/2,353.52 = 1,042.88/x
3. Step 3: Cross multiply
   1,706.47x = 2,353.52 × 1,042.88
4. Step 4: Simplify right side
   1,706.47x = 2,454,429.78
5. Step 5: Solve for x
   x = 2,454,429.78/1,706.47
6. Step 6: Final answer
   x = 1,438.31