Finding the Fourth Proportional to 2,802.72, 3,868.56 and 1,873.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,802.72 : 3,868.56 = 1,873.92 : x
2. Step 2: Convert to fraction form
   2,802.72/3,868.56 = 1,873.92/x
3. Step 3: Cross multiply
   2,802.72x = 3,868.56 × 1,873.92
4. Step 4: Simplify right side
   2,802.72x = 7,249,371.96
5. Step 5: Solve for x
   x = 7,249,371.96/2,802.72
6. Step 6: Final answer
   x = 2,586.55