Finding the Fourth Proportional to 1,071.22, 1,477.72 and 698.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,071.22 : 1,477.72 = 698.04 : x
2. Step 2: Convert to fraction form
   1,071.22/1,477.72 = 698.04/x
3. Step 3: Cross multiply
   1,071.22x = 1,477.72 × 698.04
4. Step 4: Simplify right side
   1,071.22x = 1,031,507.67
5. Step 5: Solve for x
   x = 1,031,507.67/1,071.22
6. Step 6: Final answer
   x = 962.93