Finding the Fourth Proportional to 2,520.72, 3,774 and 1,902.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,520.72 : 3,774 = 1,902.48 : x
2. Step 2: Convert to fraction form
   2,520.72/3,774 = 1,902.48/x
3. Step 3: Cross multiply
   2,520.72x = 3,774 × 1,902.48
4. Step 4: Simplify right side
   2,520.72x = 7,179,959.52
5. Step 5: Solve for x
   x = 7,179,959.52/2,520.72
6. Step 6: Final answer
   x = 2,848.38