Finding the Fourth Proportional to 1,612.53, 2,225.31 and 949.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,612.53 : 2,225.31 = 949.76 : x
2. Step 2: Convert to fraction form
   1,612.53/2,225.31 = 949.76/x
3. Step 3: Cross multiply
   1,612.53x = 2,225.31 × 949.76
4. Step 4: Simplify right side
   1,612.53x = 2,113,499.30
5. Step 5: Solve for x
   x = 2,113,499.30/1,612.53
6. Step 6: Final answer
   x = 1,310.67