Finding the Fourth Proportional to 2,713.56, 4,070.42 and 1,253.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,713.56 : 4,070.42 = 1,253.96 : x
2. Step 2: Convert to fraction form
   2,713.56/4,070.42 = 1,253.96/x
3. Step 3: Cross multiply
   2,713.56x = 4,070.42 × 1,253.96
4. Step 4: Simplify right side
   2,713.56x = 5,104,143.86
5. Step 5: Solve for x
   x = 5,104,143.86/2,713.56
6. Step 6: Final answer
   x = 1,880.98