Finding the Fourth Proportional to 1,785.25, 2,463.42 and 988.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,785.25 : 2,463.42 = 988.47 : x
2. Step 2: Convert to fraction form
   1,785.25/2,463.42 = 988.47/x
3. Step 3: Cross multiply
   1,785.25x = 2,463.42 × 988.47
4. Step 4: Simplify right side
   1,785.25x = 2,435,016.77
5. Step 5: Solve for x
   x = 2,435,016.77/1,785.25
6. Step 6: Final answer
   x = 1,363.96