Finding the Fourth Proportional to 1,898.74, 2,847.20 and 1,076.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,898.74 : 2,847.20 = 1,076.80 : x
2. Step 2: Convert to fraction form
   1,898.74/2,847.20 = 1,076.80/x
3. Step 3: Cross multiply
   1,898.74x = 2,847.20 × 1,076.80
4. Step 4: Simplify right side
   1,898.74x = 3,065,850.72
5. Step 5: Solve for x
   x = 3,065,850.72/1,898.74
6. Step 6: Final answer
   x = 1,614.68