Finding the Fourth Proportional to 1,994.22, 2,752.35 and 1,155.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,994.22 : 2,752.35 = 1,155.30 : x
2. Step 2: Convert to fraction form
   1,994.22/2,752.35 = 1,155.30/x
3. Step 3: Cross multiply
   1,994.22x = 2,752.35 × 1,155.30
4. Step 4: Simplify right side
   1,994.22x = 3,179,789.96
5. Step 5: Solve for x
   x = 3,179,789.96/1,994.22
6. Step 6: Final answer
   x = 1,594.50