Finding the Fourth Proportional to 1,300.72, 1,794.90 and 711.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.72 : 1,794.90 = 711.13 : x
2. Step 2: Convert to fraction form
   1,300.72/1,794.90 = 711.13/x
3. Step 3: Cross multiply
   1,300.72x = 1,794.90 × 711.13
4. Step 4: Simplify right side
   1,300.72x = 1,276,407.24
5. Step 5: Solve for x
   x = 1,276,407.24/1,300.72
6. Step 6: Final answer
   x = 981.31