Finding the Fourth Proportional to 2,086.30, 2,877.06 and 1,278.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.30 : 2,877.06 = 1,278.52 : x
2. Step 2: Convert to fraction form
   2,086.30/2,877.06 = 1,278.52/x
3. Step 3: Cross multiply
   2,086.30x = 2,877.06 × 1,278.52
4. Step 4: Simplify right side
   2,086.30x = 3,678,378.75
5. Step 5: Solve for x
   x = 3,678,378.75/2,086.30
6. Step 6: Final answer
   x = 1,763.11