Finding the Fourth Proportional to 2,058.88, 3,088.50 and 671.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,058.88 : 3,088.50 = 671.86 : x
2. Step 2: Convert to fraction form
   2,058.88/3,088.50 = 671.86/x
3. Step 3: Cross multiply
   2,058.88x = 3,088.50 × 671.86
4. Step 4: Simplify right side
   2,058.88x = 2,075,039.61
5. Step 5: Solve for x
   x = 2,075,039.61/2,058.88
6. Step 6: Final answer
   x = 1,007.85