Finding the Fourth Proportional to 1,722.82, 2,377.20 and 1,134.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,722.82 : 2,377.20 = 1,134.76 : x
2. Step 2: Convert to fraction form
   1,722.82/2,377.20 = 1,134.76/x
3. Step 3: Cross multiply
   1,722.82x = 2,377.20 × 1,134.76
4. Step 4: Simplify right side
   1,722.82x = 2,697,551.47
5. Step 5: Solve for x
   x = 2,697,551.47/1,722.82
6. Step 6: Final answer
   x = 1,565.78