Finding the Fourth Proportional to 1,994.72, 2,752.78 and 1,155.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,994.72 : 2,752.78 = 1,155.36 : x
2. Step 2: Convert to fraction form
   1,994.72/2,752.78 = 1,155.36/x
3. Step 3: Cross multiply
   1,994.72x = 2,752.78 × 1,155.36
4. Step 4: Simplify right side
   1,994.72x = 3,180,451.90
5. Step 5: Solve for x
   x = 3,180,451.90/1,994.72
6. Step 6: Final answer
   x = 1,594.44