Finding the Fourth Proportional to 2,058.98, 2,839.70 and 1,272.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,058.98 : 2,839.70 = 1,272.46 : x
2. Step 2: Convert to fraction form
   2,058.98/2,839.70 = 1,272.46/x
3. Step 3: Cross multiply
   2,058.98x = 2,839.70 × 1,272.46
4. Step 4: Simplify right side
   2,058.98x = 3,613,404.66
5. Step 5: Solve for x
   x = 3,613,404.66/2,058.98
6. Step 6: Final answer
   x = 1,754.95