Finding the Fourth Proportional to 2,061.25, 3,091.88 and 522.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061.25 : 3,091.88 = 522.25 : x
2. Step 2: Convert to fraction form
   2,061.25/3,091.88 = 522.25/x
3. Step 3: Cross multiply
   2,061.25x = 3,091.88 × 522.25
4. Step 4: Simplify right side
   2,061.25x = 1,614,734.33
5. Step 5: Solve for x
   x = 1,614,734.33/2,061.25
6. Step 6: Final answer
   x = 783.38