Finding the Fourth Proportional to 2,256.72, 3,385.86 and 1,612.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,256.72 : 3,385.86 = 1,612.48 : x
2. Step 2: Convert to fraction form
   2,256.72/3,385.86 = 1,612.48/x
3. Step 3: Cross multiply
   2,256.72x = 3,385.86 × 1,612.48
4. Step 4: Simplify right side
   2,256.72x = 5,459,631.53
5. Step 5: Solve for x
   x = 5,459,631.53/2,256.72
6. Step 6: Final answer
   x = 2,419.28