Finding the Fourth Proportional to 2,887.76, 3,980.04 and 2,300.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,887.76 : 3,980.04 = 2,300.24 : x
2. Step 2: Convert to fraction form
   2,887.76/3,980.04 = 2,300.24/x
3. Step 3: Cross multiply
   2,887.76x = 3,980.04 × 2,300.24
4. Step 4: Simplify right side
   2,887.76x = 9,155,047.21
5. Step 5: Solve for x
   x = 9,155,047.21/2,887.76
6. Step 6: Final answer
   x = 3,170.29