Finding the Fourth Proportional to 1,353.50, 1,862.76 and 1,072.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,353.50 : 1,862.76 = 1,072.83 : x
2. Step 2: Convert to fraction form
   1,353.50/1,862.76 = 1,072.83/x
3. Step 3: Cross multiply
   1,353.50x = 1,862.76 × 1,072.83
4. Step 4: Simplify right side
   1,353.50x = 1,998,424.81
5. Step 5: Solve for x
   x = 1,998,424.81/1,353.50
6. Step 6: Final answer
   x = 1,476.49