Finding the Fourth Proportional to 1,381.98, 2,073.30 and 732.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,381.98 : 2,073.30 = 732.57 : x
2. Step 2: Convert to fraction form
   1,381.98/2,073.30 = 732.57/x
3. Step 3: Cross multiply
   1,381.98x = 2,073.30 × 732.57
4. Step 4: Simplify right side
   1,381.98x = 1,518,837.38
5. Step 5: Solve for x
   x = 1,518,837.38/1,381.98
6. Step 6: Final answer
   x = 1,099.03