Finding the Fourth Proportional to 1,808.72, 2,711.28 and 1,374.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,808.72 : 2,711.28 = 1,374.56 : x
2. Step 2: Convert to fraction form
   1,808.72/2,711.28 = 1,374.56/x
3. Step 3: Cross multiply
   1,808.72x = 2,711.28 × 1,374.56
4. Step 4: Simplify right side
   1,808.72x = 3,726,817.04
5. Step 5: Solve for x
   x = 3,726,817.04/1,808.72
6. Step 6: Final answer
   x = 2,060.47