Finding the Fourth Proportional to 1,612.42, 2,225.10 and 949.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,612.42 : 2,225.10 = 949.30 : x
2. Step 2: Convert to fraction form
   1,612.42/2,225.10 = 949.30/x
3. Step 3: Cross multiply
   1,612.42x = 2,225.10 × 949.30
4. Step 4: Simplify right side
   1,612.42x = 2,112,287.43
5. Step 5: Solve for x
   x = 2,112,287.43/1,612.42
6. Step 6: Final answer
   x = 1,310.01