Finding the Fourth Proportional to 1,071.06, 1,477.17 and 697.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,071.06 : 1,477.17 = 697.86 : x
2. Step 2: Convert to fraction form
   1,071.06/1,477.17 = 697.86/x
3. Step 3: Cross multiply
   1,071.06x = 1,477.17 × 697.86
4. Step 4: Simplify right side
   1,071.06x = 1,030,857.86
5. Step 5: Solve for x
   x = 1,030,857.86/1,071.06
6. Step 6: Final answer
   x = 962.47