Finding the Fourth Proportional to 942.30, 1,300.32 and 709.02

Step by Step Solution

1. Step 1: Write the proportion equation
   942.30 : 1,300.32 = 709.02 : x
2. Step 2: Convert to fraction form
   942.30/1,300.32 = 709.02/x
3. Step 3: Cross multiply
   942.30x = 1,300.32 × 709.02
4. Step 4: Simplify right side
   942.30x = 921,952.89
5. Step 5: Solve for x
   x = 921,952.89/942.30
6. Step 6: Final answer
   x = 978.41