Finding the Fourth Proportional to 1,047.84, 1,445.52 and 697.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.84 : 1,445.52 = 697.92 : x
2. Step 2: Convert to fraction form
   1,047.84/1,445.52 = 697.92/x
3. Step 3: Cross multiply
   1,047.84x = 1,445.52 × 697.92
4. Step 4: Simplify right side
   1,047.84x = 1,008,857.32
5. Step 5: Solve for x
   x = 1,008,857.32/1,047.84
6. Step 6: Final answer
   x = 962.80