Finding the Fourth Proportional to 1,003.50, 1,384.26 and 710.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,003.50 : 1,384.26 = 710.10 : x
2. Step 2: Convert to fraction form
   1,003.50/1,384.26 = 710.10/x
3. Step 3: Cross multiply
   1,003.50x = 1,384.26 × 710.10
4. Step 4: Simplify right side
   1,003.50x = 982,963.03
5. Step 5: Solve for x
   x = 982,963.03/1,003.50
6. Step 6: Final answer
   x = 979.53