Finding the Fourth Proportional to 1,359.42, 1,875.87 and 1,080.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.42 : 1,875.87 = 1,080.33 : x
2. Step 2: Convert to fraction form
   1,359.42/1,875.87 = 1,080.33/x
3. Step 3: Cross multiply
   1,359.42x = 1,875.87 × 1,080.33
4. Step 4: Simplify right side
   1,359.42x = 2,026,558.64
5. Step 5: Solve for x
   x = 2,026,558.64/1,359.42
6. Step 6: Final answer
   x = 1,490.75