Finding the Fourth Proportional to 2,788.84, 4,180.83 and 1,058.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,788.84 : 4,180.83 = 1,058.68 : x
2. Step 2: Convert to fraction form
   2,788.84/4,180.83 = 1,058.68/x
3. Step 3: Cross multiply
   2,788.84x = 4,180.83 × 1,058.68
4. Step 4: Simplify right side
   2,788.84x = 4,426,161.10
5. Step 5: Solve for x
   x = 4,426,161.10/2,788.84
6. Step 6: Final answer
   x = 1,587.10