Finding the Fourth Proportional to 2,151.57, 3,221.27 and 1,369.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,151.57 : 3,221.27 = 1,369.62 : x
2. Step 2: Convert to fraction form
   2,151.57/3,221.27 = 1,369.62/x
3. Step 3: Cross multiply
   2,151.57x = 3,221.27 × 1,369.62
4. Step 4: Simplify right side
   2,151.57x = 4,411,915.82
5. Step 5: Solve for x
   x = 4,411,915.82/2,151.57
6. Step 6: Final answer
   x = 2,050.56