Finding the Fourth Proportional to 2,012.86, 3,017.40 and 1,808.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.86 : 3,017.40 = 1,808.74 : x
2. Step 2: Convert to fraction form
   2,012.86/3,017.40 = 1,808.74/x
3. Step 3: Cross multiply
   2,012.86x = 3,017.40 × 1,808.74
4. Step 4: Simplify right side
   2,012.86x = 5,457,692.08
5. Step 5: Solve for x
   x = 5,457,692.08/2,012.86
6. Step 6: Final answer
   x = 2,711.41