Finding the Fourth Proportional to 2,521.20, 3,475.96 and 1,812.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521.20 : 3,475.96 = 1,812.48 : x
2. Step 2: Convert to fraction form
   2,521.20/3,475.96 = 1,812.48/x
3. Step 3: Cross multiply
   2,521.20x = 3,475.96 × 1,812.48
4. Step 4: Simplify right side
   2,521.20x = 6,300,100.61
5. Step 5: Solve for x
   x = 6,300,100.61/2,521.20
6. Step 6: Final answer
   x = 2,498.85