Finding the Fourth Proportional to 2,017.45, 3,025.40 and 784.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.45 : 3,025.40 = 784.71 : x
2. Step 2: Convert to fraction form
   2,017.45/3,025.40 = 784.71/x
3. Step 3: Cross multiply
   2,017.45x = 3,025.40 × 784.71
4. Step 4: Simplify right side
   2,017.45x = 2,374,063.60
5. Step 5: Solve for x
   x = 2,374,063.60/2,017.45
6. Step 6: Final answer
   x = 1,176.77