Finding the Fourth Proportional to 1,404.41, 2,106.93 and 788.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.41 : 2,106.93 = 788.54 : x
2. Step 2: Convert to fraction form
   1,404.41/2,106.93 = 788.54/x
3. Step 3: Cross multiply
   1,404.41x = 2,106.93 × 788.54
4. Step 4: Simplify right side
   1,404.41x = 1,661,398.58
5. Step 5: Solve for x
   x = 1,661,398.58/1,404.41
6. Step 6: Final answer
   x = 1,182.99