Finding the Fourth Proportional to 2,923.88, 4,385.91 and 1,191.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,923.88 : 4,385.91 = 1,191.29 : x
2. Step 2: Convert to fraction form
   2,923.88/4,385.91 = 1,191.29/x
3. Step 3: Cross multiply
   2,923.88x = 4,385.91 × 1,191.29
4. Step 4: Simplify right side
   2,923.88x = 5,224,890.72
5. Step 5: Solve for x
   x = 5,224,890.72/2,923.88
6. Step 6: Final answer
   x = 1,786.97