Finding the Fourth Proportional to 2,256.13, 3,113.67 and 1,372.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,256.13 : 3,113.67 = 1,372.15 : x
2. Step 2: Convert to fraction form
   2,256.13/3,113.67 = 1,372.15/x
3. Step 3: Cross multiply
   2,256.13x = 3,113.67 × 1,372.15
4. Step 4: Simplify right side
   2,256.13x = 4,272,422.29
5. Step 5: Solve for x
   x = 4,272,422.29/2,256.13
6. Step 6: Final answer
   x = 1,893.70