Finding the Fourth Proportional to 2,047.40, 2,766.15 and 2,047.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,047.40 : 2,766.15 = 2,047.40 : x
2. Step 2: Convert to fraction form
   2,047.40/2,766.15 = 2,047.40/x
3. Step 3: Cross multiply
   2,047.40x = 2,766.15 × 2,047.40
4. Step 4: Simplify right side
   2,047.40x = 5,663,415.51
5. Step 5: Solve for x
   x = 5,663,415.51/2,047.40
6. Step 6: Final answer
   x = 2,766.15