Finding the Fourth Proportional to 1,348.47, 1,859.90 and 1,016.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,348.47 : 1,859.90 = 1,016.91 : x
2. Step 2: Convert to fraction form
   1,348.47/1,859.90 = 1,016.91/x
3. Step 3: Cross multiply
   1,348.47x = 1,859.90 × 1,016.91
4. Step 4: Simplify right side
   1,348.47x = 1,891,345.82
5. Step 5: Solve for x
   x = 1,891,345.82/1,348.47
6. Step 6: Final answer
   x = 1,402.59