Finding the Fourth Proportional to 1,064.98, 1,468.78 and 686.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,064.98 : 1,468.78 = 686.94 : x
2. Step 2: Convert to fraction form
   1,064.98/1,468.78 = 686.94/x
3. Step 3: Cross multiply
   1,064.98x = 1,468.78 × 686.94
4. Step 4: Simplify right side
   1,064.98x = 1,008,963.73
5. Step 5: Solve for x
   x = 1,008,963.73/1,064.98
6. Step 6: Final answer
   x = 947.40