Finding the Fourth Proportional to 1,393.00, 1,921.82 and 803.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,393.00 : 1,921.82 = 803.32 : x
2. Step 2: Convert to fraction form
   1,393.00/1,921.82 = 803.32/x
3. Step 3: Cross multiply
   1,393.00x = 1,921.82 × 803.32
4. Step 4: Simplify right side
   1,393.00x = 1,543,837.84
5. Step 5: Solve for x
   x = 1,543,837.84/1,393.00
6. Step 6: Final answer
   x = 1,108.28