Finding the Fourth Proportional to 2,061, 3,091.50 and 522

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061 : 3,091.50 = 522 : x
2. Step 2: Convert to fraction form
   2,061/3,091.50 = 522/x
3. Step 3: Cross multiply
   2,061x = 3,091.50 × 522
4. Step 4: Simplify right side
   2,061x = 1,613,763
5. Step 5: Solve for x
   x = 1,613,763/2,061
6. Step 6: Final answer
   x = 783