Finding the Fourth Proportional to 1,393.00, 1,919.80 and 1,305.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,393.00 : 1,919.80 = 1,305.32 : x
2. Step 2: Convert to fraction form
   1,393.00/1,919.80 = 1,305.32/x
3. Step 3: Cross multiply
   1,393.00x = 1,919.80 × 1,305.32
4. Step 4: Simplify right side
   1,393.00x = 2,505,945.37
5. Step 5: Solve for x
   x = 2,505,945.37/1,393.00
6. Step 6: Final answer
   x = 1,798.96