Finding the Fourth Proportional to 1,041.81, 1,561.16 and 949.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,041.81 : 1,561.16 = 949.61 : x
2. Step 2: Convert to fraction form
   1,041.81/1,561.16 = 949.61/x
3. Step 3: Cross multiply
   1,041.81x = 1,561.16 × 949.61
4. Step 4: Simplify right side
   1,041.81x = 1,482,487.72
5. Step 5: Solve for x
   x = 1,482,487.72/1,041.81
6. Step 6: Final answer
   x = 1,422.99