Finding the Fourth Proportional to 2,255.58, 3,113.28 and 1,372.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,255.58 : 3,113.28 = 1,372.01 : x
2. Step 2: Convert to fraction form
   2,255.58/3,113.28 = 1,372.01/x
3. Step 3: Cross multiply
   2,255.58x = 3,113.28 × 1,372.01
4. Step 4: Simplify right side
   2,255.58x = 4,271,435.73
5. Step 5: Solve for x
   x = 4,271,435.73/2,255.58
6. Step 6: Final answer
   x = 1,893.72