Finding the Fourth Proportional to 1,808.78, 2,498.46 and 1,337.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,808.78 : 2,498.46 = 1,337.63 : x
2. Step 2: Convert to fraction form
   1,808.78/2,498.46 = 1,337.63/x
3. Step 3: Cross multiply
   1,808.78x = 2,498.46 × 1,337.63
4. Step 4: Simplify right side
   1,808.78x = 3,342,015.05
5. Step 5: Solve for x
   x = 3,342,015.05/1,808.78
6. Step 6: Final answer
   x = 1,847.66