Finding the Fourth Proportional to 1,778.71, 2,454.50 and 1,070.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,778.71 : 2,454.50 = 1,070.42 : x
2. Step 2: Convert to fraction form
   1,778.71/2,454.50 = 1,070.42/x
3. Step 3: Cross multiply
   1,778.71x = 2,454.50 × 1,070.42
4. Step 4: Simplify right side
   1,778.71x = 2,627,345.89
5. Step 5: Solve for x
   x = 2,627,345.89/1,778.71
6. Step 6: Final answer
   x = 1,477.11