Finding the Fourth Proportional to 2,255.02, 3,111.23 and 1,310.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,255.02 : 3,111.23 = 1,310.63 : x
2. Step 2: Convert to fraction form
   2,255.02/3,111.23 = 1,310.63/x
3. Step 3: Cross multiply
   2,255.02x = 3,111.23 × 1,310.63
4. Step 4: Simplify right side
   2,255.02x = 4,077,659.10
5. Step 5: Solve for x
   x = 4,077,659.10/2,255.02
6. Step 6: Final answer
   x = 1,808.26