Finding the Fourth Proportional to 2,315.57, 3,465.16 and 2,042.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,315.57 : 3,465.16 = 2,042.20 : x
2. Step 2: Convert to fraction form
   2,315.57/3,465.16 = 2,042.20/x
3. Step 3: Cross multiply
   2,315.57x = 3,465.16 × 2,042.20
4. Step 4: Simplify right side
   2,315.57x = 7,076,535.98
5. Step 5: Solve for x
   x = 7,076,535.98/2,315.57
6. Step 6: Final answer
   x = 3,056.06