Finding the Fourth Proportional to 1,483.07, 2,047.28 and 1,042.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,483.07 : 2,047.28 = 1,042.61 : x
2. Step 2: Convert to fraction form
   1,483.07/2,047.28 = 1,042.61/x
3. Step 3: Cross multiply
   1,483.07x = 2,047.28 × 1,042.61
4. Step 4: Simplify right side
   1,483.07x = 2,134,499.15
5. Step 5: Solve for x
   x = 2,134,499.15/1,483.07
6. Step 6: Final answer
   x = 1,439.25