Finding the Fourth Proportional to 2,875.42, 3,970.38 and 2,654.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,875.42 : 3,970.38 = 2,654.29 : x
2. Step 2: Convert to fraction form
   2,875.42/3,970.38 = 2,654.29/x
3. Step 3: Cross multiply
   2,875.42x = 3,970.38 × 2,654.29
4. Step 4: Simplify right side
   2,875.42x = 10,538,539.93
5. Step 5: Solve for x
   x = 10,538,539.93/2,875.42
6. Step 6: Final answer
   x = 3,665.04