Finding the Fourth Proportional to 2,272.60, 3,136.32 and 1,328.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,272.60 : 3,136.32 = 1,328.52 : x
2. Step 2: Convert to fraction form
   2,272.60/3,136.32 = 1,328.52/x
3. Step 3: Cross multiply
   2,272.60x = 3,136.32 × 1,328.52
4. Step 4: Simplify right side
   2,272.60x = 4,166,663.85
5. Step 5: Solve for x
   x = 4,166,663.85/2,272.60
6. Step 6: Final answer
   x = 1,833.43