Finding the Fourth Proportional to 1,705.98, 2,353.35 and 1,042.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,705.98 : 2,353.35 = 1,042.86 : x
2. Step 2: Convert to fraction form
   1,705.98/2,353.35 = 1,042.86/x
3. Step 3: Cross multiply
   1,705.98x = 2,353.35 × 1,042.86
4. Step 4: Simplify right side
   1,705.98x = 2,454,214.58
5. Step 5: Solve for x
   x = 2,454,214.58/1,705.98
6. Step 6: Final answer
   x = 1,438.60