Finding the Fourth Proportional to 1,150.07, 1,586.59 and 707.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.07 : 1,586.59 = 707.81 : x
2. Step 2: Convert to fraction form
   1,150.07/1,586.59 = 707.81/x
3. Step 3: Cross multiply
   1,150.07x = 1,586.59 × 707.81
4. Step 4: Simplify right side
   1,150.07x = 1,123,004.27
5. Step 5: Solve for x
   x = 1,123,004.27/1,150.07
6. Step 6: Final answer
   x = 976.47