Finding the Fourth Proportional to 1,348.69, 1,860.69 and 788.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,348.69 : 1,860.69 = 788.98 : x
2. Step 2: Convert to fraction form
   1,348.69/1,860.69 = 788.98/x
3. Step 3: Cross multiply
   1,348.69x = 1,860.69 × 788.98
4. Step 4: Simplify right side
   1,348.69x = 1,468,043.25
5. Step 5: Solve for x
   x = 1,468,043.25/1,348.69
6. Step 6: Final answer
   x = 1,088.50