Finding the Fourth Proportional to 3,103.31, 4,654.98 and 2,947.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,103.31 : 4,654.98 = 2,947.59 : x
2. Step 2: Convert to fraction form
   3,103.31/4,654.98 = 2,947.59/x
3. Step 3: Cross multiply
   3,103.31x = 4,654.98 × 2,947.59
4. Step 4: Simplify right side
   3,103.31x = 13,720,972.50
5. Step 5: Solve for x
   x = 13,720,972.50/3,103.31
6. Step 6: Final answer
   x = 4,421.40