Finding the Fourth Proportional to 2,254.40, 3,111.12 and 1,310.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,254.40 : 3,111.12 = 1,310.16 : x
2. Step 2: Convert to fraction form
   2,254.40/3,111.12 = 1,310.16/x
3. Step 3: Cross multiply
   2,254.40x = 3,111.12 × 1,310.16
4. Step 4: Simplify right side
   2,254.40x = 4,076,064.98
5. Step 5: Solve for x
   x = 4,076,064.98/2,254.40
6. Step 6: Final answer
   x = 1,808.05