Finding the Fourth Proportional to 1,365.80, 1,886.25 and 1,073.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,365.80 : 1,886.25 = 1,073.30 : x
2. Step 2: Convert to fraction form
   1,365.80/1,886.25 = 1,073.30/x
3. Step 3: Cross multiply
   1,365.80x = 1,886.25 × 1,073.30
4. Step 4: Simplify right side
   1,365.80x = 2,024,502.69
5. Step 5: Solve for x
   x = 2,024,502.69/1,365.80
6. Step 6: Final answer
   x = 1,482.29