Finding the Fourth Proportional to 1,348.37, 1,860.46 and 788.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,348.37 : 1,860.46 = 788.89 : x
2. Step 2: Convert to fraction form
   1,348.37/1,860.46 = 788.89/x
3. Step 3: Cross multiply
   1,348.37x = 1,860.46 × 788.89
4. Step 4: Simplify right side
   1,348.37x = 1,467,698.29
5. Step 5: Solve for x
   x = 1,467,698.29/1,348.37
6. Step 6: Final answer
   x = 1,088.50