Finding the Fourth Proportional to 1,017.63, 1,403.87 and 714.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017.63 : 1,403.87 = 714.83 : x
2. Step 2: Convert to fraction form
   1,017.63/1,403.87 = 714.83/x
3. Step 3: Cross multiply
   1,017.63x = 1,403.87 × 714.83
4. Step 4: Simplify right side
   1,017.63x = 1,003,517.80
5. Step 5: Solve for x
   x = 1,003,517.80/1,017.63
6. Step 6: Final answer
   x = 986.13