Finding the Fourth Proportional to 2,091.49, 3,137.45 and 775.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091.49 : 3,137.45 = 775.59 : x
2. Step 2: Convert to fraction form
   2,091.49/3,137.45 = 775.59/x
3. Step 3: Cross multiply
   2,091.49x = 3,137.45 × 775.59
4. Step 4: Simplify right side
   2,091.49x = 2,433,381.21
5. Step 5: Solve for x
   x = 2,433,381.21/2,091.49
6. Step 6: Final answer
   x = 1,163.47