Finding the Fourth Proportional to 1,814.83, 2,721.78 and 774.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,814.83 : 2,721.78 = 774.31 : x
2. Step 2: Convert to fraction form
   1,814.83/2,721.78 = 774.31/x
3. Step 3: Cross multiply
   1,814.83x = 2,721.78 × 774.31
4. Step 4: Simplify right side
   1,814.83x = 2,107,501.47
5. Step 5: Solve for x
   x = 2,107,501.47/1,814.83
6. Step 6: Final answer
   x = 1,161.27