Finding the Fourth Proportional to 2,308.48, 3,189.76 and 1,812.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.48 : 3,189.76 = 1,812.48 : x
2. Step 2: Convert to fraction form
   2,308.48/3,189.76 = 1,812.48/x
3. Step 3: Cross multiply
   2,308.48x = 3,189.76 × 1,812.48
4. Step 4: Simplify right side
   2,308.48x = 5,781,376.20
5. Step 5: Solve for x
   x = 5,781,376.20/2,308.48
6. Step 6: Final answer
   x = 2,504.41