Finding the Fourth Proportional to 1,854.72, 2,779.20 and 758.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,854.72 : 2,779.20 = 758.16 : x
2. Step 2: Convert to fraction form
   1,854.72/2,779.20 = 758.16/x
3. Step 3: Cross multiply
   1,854.72x = 2,779.20 × 758.16
4. Step 4: Simplify right side
   1,854.72x = 2,107,078.27
5. Step 5: Solve for x
   x = 2,107,078.27/1,854.72
6. Step 6: Final answer
   x = 1,136.06