Finding the Fourth Proportional to 2,947.30, 4,421.00 and 2,359.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,947.30 : 4,421.00 = 2,359.58 : x
2. Step 2: Convert to fraction form
   2,947.30/4,421.00 = 2,359.58/x
3. Step 3: Cross multiply
   2,947.30x = 4,421.00 × 2,359.58
4. Step 4: Simplify right side
   2,947.30x = 10,431,669.28
5. Step 5: Solve for x
   x = 10,431,669.28/2,947.30
6. Step 6: Final answer
   x = 3,539.40