Finding the Fourth Proportional to 1,919.74, 2,648.78 and 1,134.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,919.74 : 2,648.78 = 1,134.04 : x
2. Step 2: Convert to fraction form
   1,919.74/2,648.78 = 1,134.04/x
3. Step 3: Cross multiply
   1,919.74x = 2,648.78 × 1,134.04
4. Step 4: Simplify right side
   1,919.74x = 3,003,822.47
5. Step 5: Solve for x
   x = 3,003,822.47/1,919.74
6. Step 6: Final answer
   x = 1,564.70