Finding the Fourth Proportional to 2,561.96, 3,842.76 and 713.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561.96 : 3,842.76 = 713.04 : x
2. Step 2: Convert to fraction form
   2,561.96/3,842.76 = 713.04/x
3. Step 3: Cross multiply
   2,561.96x = 3,842.76 × 713.04
4. Step 4: Simplify right side
   2,561.96x = 2,740,041.59
5. Step 5: Solve for x
   x = 2,740,041.59/2,561.96
6. Step 6: Final answer
   x = 1,069.51