Finding the Fourth Proportional to 1,377.33, 1,901.15 and 788.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,377.33 : 1,901.15 = 788.27 : x
2. Step 2: Convert to fraction form
   1,377.33/1,901.15 = 788.27/x
3. Step 3: Cross multiply
   1,377.33x = 1,901.15 × 788.27
4. Step 4: Simplify right side
   1,377.33x = 1,498,606.06
5. Step 5: Solve for x
   x = 1,498,606.06/1,377.33
6. Step 6: Final answer
   x = 1,088.05