Finding the Fourth Proportional to 1,300.05, 1,793.98 and 710.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.05 : 1,793.98 = 710.57 : x
2. Step 2: Convert to fraction form
   1,300.05/1,793.98 = 710.57/x
3. Step 3: Cross multiply
   1,300.05x = 1,793.98 × 710.57
4. Step 4: Simplify right side
   1,300.05x = 1,274,753.74
5. Step 5: Solve for x
   x = 1,274,753.74/1,300.05
6. Step 6: Final answer
   x = 980.54