Finding the Fourth Proportional to 1,411.09, 2,114.34 and 1,255.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.09 : 2,114.34 = 1,255.30 : x
2. Step 2: Convert to fraction form
   1,411.09/2,114.34 = 1,255.30/x
3. Step 3: Cross multiply
   1,411.09x = 2,114.34 × 1,255.30
4. Step 4: Simplify right side
   1,411.09x = 2,654,131.00
5. Step 5: Solve for x
   x = 2,654,131.00/1,411.09
6. Step 6: Final answer
   x = 1,880.91