Finding the Fourth Proportional to 3,847.49, 5,308.86 and 2,275.01

Step by Step Solution

1. Step 1: Write the proportion equation
   3,847.49 : 5,308.86 = 2,275.01 : x
2. Step 2: Convert to fraction form
   3,847.49/5,308.86 = 2,275.01/x
3. Step 3: Cross multiply
   3,847.49x = 5,308.86 × 2,275.01
4. Step 4: Simplify right side
   3,847.49x = 12,077,671.67
5. Step 5: Solve for x
   x = 12,077,671.67/3,847.49
6. Step 6: Final answer
   x = 3,139.11