Finding the Fourth Proportional to 1,706.77, 2,355.39 and 1,043.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,706.77 : 2,355.39 = 1,043.61 : x
2. Step 2: Convert to fraction form
   1,706.77/2,355.39 = 1,043.61/x
3. Step 3: Cross multiply
   1,706.77x = 2,355.39 × 1,043.61
4. Step 4: Simplify right side
   1,706.77x = 2,458,108.56
5. Step 5: Solve for x
   x = 2,458,108.56/1,706.77
6. Step 6: Final answer
   x = 1,440.21