Finding the Fourth Proportional to 1,036.64, 1,553.33 and 723.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,036.64 : 1,553.33 = 723.98 : x
2. Step 2: Convert to fraction form
   1,036.64/1,553.33 = 723.98/x
3. Step 3: Cross multiply
   1,036.64x = 1,553.33 × 723.98
4. Step 4: Simplify right side
   1,036.64x = 1,124,580.12
5. Step 5: Solve for x
   x = 1,124,580.12/1,036.64
6. Step 6: Final answer
   x = 1,084.83