Finding the Fourth Proportional to 1,856.30, 2,785.57 and 701.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,856.30 : 2,785.57 = 701.98 : x
2. Step 2: Convert to fraction form
   1,856.30/2,785.57 = 701.98/x
3. Step 3: Cross multiply
   1,856.30x = 2,785.57 × 701.98
4. Step 4: Simplify right side
   1,856.30x = 1,955,414.43
5. Step 5: Solve for x
   x = 1,955,414.43/1,856.30
6. Step 6: Final answer
   x = 1,053.39