Finding the Fourth Proportional to 2,875.02, 4,308.48 and 1,311.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,875.02 : 4,308.48 = 1,311.18 : x
2. Step 2: Convert to fraction form
   2,875.02/4,308.48 = 1,311.18/x
3. Step 3: Cross multiply
   2,875.02x = 4,308.48 × 1,311.18
4. Step 4: Simplify right side
   2,875.02x = 5,649,192.81
5. Step 5: Solve for x
   x = 5,649,192.81/2,875.02
6. Step 6: Final answer
   x = 1,964.92