Finding the Fourth Proportional to 1,061.61, 1,465.43 and 950.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.61 : 1,465.43 = 950.90 : x
2. Step 2: Convert to fraction form
   1,061.61/1,465.43 = 950.90/x
3. Step 3: Cross multiply
   1,061.61x = 1,465.43 × 950.90
4. Step 4: Simplify right side
   1,061.61x = 1,393,465.31
5. Step 5: Solve for x
   x = 1,393,465.31/1,061.61
6. Step 6: Final answer
   x = 1,312.60