Finding the Fourth Proportional to 2,224.78, 3,334.89 and 837.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,224.78 : 3,334.89 = 837.15 : x
2. Step 2: Convert to fraction form
   2,224.78/3,334.89 = 837.15/x
3. Step 3: Cross multiply
   2,224.78x = 3,334.89 × 837.15
4. Step 4: Simplify right side
   2,224.78x = 2,791,782.30
5. Step 5: Solve for x
   x = 2,791,782.30/2,224.78
6. Step 6: Final answer
   x = 1,254.86