Finding the Fourth Proportional to 2,612.25, 3,918.98 and 1,880.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.25 : 3,918.98 = 1,880.52 : x
2. Step 2: Convert to fraction form
   2,612.25/3,918.98 = 1,880.52/x
3. Step 3: Cross multiply
   2,612.25x = 3,918.98 × 1,880.52
4. Step 4: Simplify right side
   2,612.25x = 7,369,710.27
5. Step 5: Solve for x
   x = 7,369,710.27/2,612.25
6. Step 6: Final answer
   x = 2,821.21