Finding the Fourth Proportional to 1,348.29, 1,860.57 and 788.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,348.29 : 1,860.57 = 788.82 : x
2. Step 2: Convert to fraction form
   1,348.29/1,860.57 = 788.82/x
3. Step 3: Cross multiply
   1,348.29x = 1,860.57 × 788.82
4. Step 4: Simplify right side
   1,348.29x = 1,467,647.85
5. Step 5: Solve for x
   x = 1,467,647.85/1,348.29
6. Step 6: Final answer
   x = 1,088.53