Finding the Fourth Proportional to 1,780.86, 2,458.74 and 1,594.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,780.86 : 2,458.74 = 1,594.02 : x
2. Step 2: Convert to fraction form
   1,780.86/2,458.74 = 1,594.02/x
3. Step 3: Cross multiply
   1,780.86x = 2,458.74 × 1,594.02
4. Step 4: Simplify right side
   1,780.86x = 3,919,280.73
5. Step 5: Solve for x
   x = 3,919,280.73/1,780.86
6. Step 6: Final answer
   x = 2,200.78