Finding the Fourth Proportional to 1,064.01, 1,469.01 and 686.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,064.01 : 1,469.01 = 686.06 : x
2. Step 2: Convert to fraction form
   1,064.01/1,469.01 = 686.06/x
3. Step 3: Cross multiply
   1,064.01x = 1,469.01 × 686.06
4. Step 4: Simplify right side
   1,064.01x = 1,007,829.00
5. Step 5: Solve for x
   x = 1,007,829.00/1,064.01
6. Step 6: Final answer
   x = 947.20