Finding the Fourth Proportional to 2,479.54, 3,714.52 and 1,380.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,479.54 : 3,714.52 = 1,380.58 : x
2. Step 2: Convert to fraction form
   2,479.54/3,714.52 = 1,380.58/x
3. Step 3: Cross multiply
   2,479.54x = 3,714.52 × 1,380.58
4. Step 4: Simplify right side
   2,479.54x = 5,128,192.02
5. Step 5: Solve for x
   x = 5,128,192.02/2,479.54
6. Step 6: Final answer
   x = 2,068.20