Finding the Fourth Proportional to 1,612.59, 2,224.98 and 913.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,612.59 : 2,224.98 = 913.96 : x
2. Step 2: Convert to fraction form
   1,612.59/2,224.98 = 913.96/x
3. Step 3: Cross multiply
   1,612.59x = 2,224.98 × 913.96
4. Step 4: Simplify right side
   1,612.59x = 2,033,542.72
5. Step 5: Solve for x
   x = 2,033,542.72/1,612.59
6. Step 6: Final answer
   x = 1,261.04