Finding the Fourth Proportional to 1,805.22, 2,709.72 and 1,147.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,805.22 : 2,709.72 = 1,147.86 : x
2. Step 2: Convert to fraction form
   1,805.22/2,709.72 = 1,147.86/x
3. Step 3: Cross multiply
   1,805.22x = 2,709.72 × 1,147.86
4. Step 4: Simplify right side
   1,805.22x = 3,110,379.20
5. Step 5: Solve for x
   x = 3,110,379.20/1,805.22
6. Step 6: Final answer
   x = 1,722.99