Finding the Fourth Proportional to 2,017.10, 3,023.85 and 784.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.10 : 3,023.85 = 784.10 : x
2. Step 2: Convert to fraction form
   2,017.10/3,023.85 = 784.10/x
3. Step 3: Cross multiply
   2,017.10x = 3,023.85 × 784.10
4. Step 4: Simplify right side
   2,017.10x = 2,371,000.79
5. Step 5: Solve for x
   x = 2,371,000.79/2,017.10
6. Step 6: Final answer
   x = 1,175.45