Finding the Fourth Proportional to 2,017.86, 3,024.60 and 784.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.86 : 3,024.60 = 784.90 : x
2. Step 2: Convert to fraction form
   2,017.86/3,024.60 = 784.90/x
3. Step 3: Cross multiply
   2,017.86x = 3,024.60 × 784.90
4. Step 4: Simplify right side
   2,017.86x = 2,374,008.54
5. Step 5: Solve for x
   x = 2,374,008.54/2,017.86
6. Step 6: Final answer
   x = 1,176.50