Finding the Fourth Proportional to 1,359.60, 1,873.56 and 965.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.60 : 1,873.56 = 965.52 : x
2. Step 2: Convert to fraction form
   1,359.60/1,873.56 = 965.52/x
3. Step 3: Cross multiply
   1,359.60x = 1,873.56 × 965.52
4. Step 4: Simplify right side
   1,359.60x = 1,808,959.65
5. Step 5: Solve for x
   x = 1,808,959.65/1,359.60
6. Step 6: Final answer
   x = 1,330.51