Finding the Fourth Proportional to 1,070.29, 1,476.45 and 697.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,070.29 : 1,476.45 = 697.89 : x
2. Step 2: Convert to fraction form
   1,070.29/1,476.45 = 697.89/x
3. Step 3: Cross multiply
   1,070.29x = 1,476.45 × 697.89
4. Step 4: Simplify right side
   1,070.29x = 1,030,399.69
5. Step 5: Solve for x
   x = 1,030,399.69/1,070.29
6. Step 6: Final answer
   x = 962.73