Finding the Fourth Proportional to 2,612.27, 3,915.63 and 1,224.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.27 : 3,915.63 = 1,224.45 : x
2. Step 2: Convert to fraction form
   2,612.27/3,915.63 = 1,224.45/x
3. Step 3: Cross multiply
   2,612.27x = 3,915.63 × 1,224.45
4. Step 4: Simplify right side
   2,612.27x = 4,794,493.15
5. Step 5: Solve for x
   x = 4,794,493.15/2,612.27
6. Step 6: Final answer
   x = 1,835.37