Finding the Fourth Proportional to 1,484.30, 2,048.76 and 1,042.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,484.30 : 2,048.76 = 1,042.31 : x
2. Step 2: Convert to fraction form
   1,484.30/2,048.76 = 1,042.31/x
3. Step 3: Cross multiply
   1,484.30x = 2,048.76 × 1,042.31
4. Step 4: Simplify right side
   1,484.30x = 2,135,443.04
5. Step 5: Solve for x
   x = 2,135,443.04/1,484.30
6. Step 6: Final answer
   x = 1,438.69