Finding the Fourth Proportional to 2,074.01, 3,109.79 and 775.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,074.01 : 3,109.79 = 775.58 : x
2. Step 2: Convert to fraction form
   2,074.01/3,109.79 = 775.58/x
3. Step 3: Cross multiply
   2,074.01x = 3,109.79 × 775.58
4. Step 4: Simplify right side
   2,074.01x = 2,411,877.32
5. Step 5: Solve for x
   x = 2,411,877.32/2,074.01
6. Step 6: Final answer
   x = 1,162.91