Finding the Fourth Proportional to 1,061.79, 1,464.78 and 707.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.79 : 1,464.78 = 707.62 : x
2. Step 2: Convert to fraction form
   1,061.79/1,464.78 = 707.62/x
3. Step 3: Cross multiply
   1,061.79x = 1,464.78 × 707.62
4. Step 4: Simplify right side
   1,061.79x = 1,036,507.62
5. Step 5: Solve for x
   x = 1,036,507.62/1,061.79
6. Step 6: Final answer
   x = 976.19