Finding the Fourth Proportional to 2,068.58, 2,851.84 and 1,478.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068.58 : 2,851.84 = 1,478.10 : x
2. Step 2: Convert to fraction form
   2,068.58/2,851.84 = 1,478.10/x
3. Step 3: Cross multiply
   2,068.58x = 2,851.84 × 1,478.10
4. Step 4: Simplify right side
   2,068.58x = 4,215,304.70
5. Step 5: Solve for x
   x = 4,215,304.70/2,068.58
6. Step 6: Final answer
   x = 2,037.78