Finding the Fourth Proportional to 1,933.36, 2,667.72 and 1,147.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,933.36 : 2,667.72 = 1,147.44 : x
2. Step 2: Convert to fraction form
   1,933.36/2,667.72 = 1,147.44/x
3. Step 3: Cross multiply
   1,933.36x = 2,667.72 × 1,147.44
4. Step 4: Simplify right side
   1,933.36x = 3,061,048.64
5. Step 5: Solve for x
   x = 3,061,048.64/1,933.36
6. Step 6: Final answer
   x = 1,583.28