Finding the Fourth Proportional to 1,810.54, 2,711.42 and 1,253.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,810.54 : 2,711.42 = 1,253.69 : x
2. Step 2: Convert to fraction form
   1,810.54/2,711.42 = 1,253.69/x
3. Step 3: Cross multiply
   1,810.54x = 2,711.42 × 1,253.69
4. Step 4: Simplify right side
   1,810.54x = 3,399,280.14
5. Step 5: Solve for x
   x = 3,399,280.14/1,810.54
6. Step 6: Final answer
   x = 1,877.50