Finding the Fourth Proportional to 2,519.64, 3,775.56 and 1,285.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,519.64 : 3,775.56 = 1,285.32 : x
2. Step 2: Convert to fraction form
   2,519.64/3,775.56 = 1,285.32/x
3. Step 3: Cross multiply
   2,519.64x = 3,775.56 × 1,285.32
4. Step 4: Simplify right side
   2,519.64x = 4,852,802.78
5. Step 5: Solve for x
   x = 4,852,802.78/2,519.64
6. Step 6: Final answer
   x = 1,925.99