Finding the Fourth Proportional to 3,945.16, 5,443.86 and 2,373.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,945.16 : 5,443.86 = 2,373.40 : x
2. Step 2: Convert to fraction form
   3,945.16/5,443.86 = 2,373.40/x
3. Step 3: Cross multiply
   3,945.16x = 5,443.86 × 2,373.40
4. Step 4: Simplify right side
   3,945.16x = 12,920,457.32
5. Step 5: Solve for x
   x = 12,920,457.32/3,945.16
6. Step 6: Final answer
   x = 3,275.01