Finding the Fourth Proportional to 1,919.31, 2,648.75 and 1,133.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,919.31 : 2,648.75 = 1,133.34 : x
2. Step 2: Convert to fraction form
   1,919.31/2,648.75 = 1,133.34/x
3. Step 3: Cross multiply
   1,919.31x = 2,648.75 × 1,133.34
4. Step 4: Simplify right side
   1,919.31x = 3,001,928.66
5. Step 5: Solve for x
   x = 3,001,928.66/1,919.31
6. Step 6: Final answer
   x = 1,564.07