Finding the Fourth Proportional to 2,160.05, 3,240.52 and 773.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,160.05 : 3,240.52 = 773.42 : x
2. Step 2: Convert to fraction form
   2,160.05/3,240.52 = 773.42/x
3. Step 3: Cross multiply
   2,160.05x = 3,240.52 × 773.42
4. Step 4: Simplify right side
   2,160.05x = 2,506,264.84
5. Step 5: Solve for x
   x = 2,506,264.84/2,160.05
6. Step 6: Final answer
   x = 1,160.28