Finding the Fourth Proportional to 1,348.59, 2,014.60 and 1,129.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,348.59 : 2,014.60 = 1,129.89 : x
2. Step 2: Convert to fraction form
   1,348.59/2,014.60 = 1,129.89/x
3. Step 3: Cross multiply
   1,348.59x = 2,014.60 × 1,129.89
4. Step 4: Simplify right side
   1,348.59x = 2,276,273.57
5. Step 5: Solve for x
   x = 2,276,273.57/1,348.59
6. Step 6: Final answer
   x = 1,687.89