Finding the Fourth Proportional to 2,802.31, 3,871.12 and 2,654.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,802.31 : 3,871.12 = 2,654.69 : x
2. Step 2: Convert to fraction form
   2,802.31/3,871.12 = 2,654.69/x
3. Step 3: Cross multiply
   2,802.31x = 3,871.12 × 2,654.69
4. Step 4: Simplify right side
   2,802.31x = 10,276,600.60
5. Step 5: Solve for x
   x = 10,276,600.60/2,802.31
6. Step 6: Final answer
   x = 3,667.19