Finding the Fourth Proportional to 1,404.56, 1,938.66 and 962.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.56 : 1,938.66 = 962.30 : x
2. Step 2: Convert to fraction form
   1,404.56/1,938.66 = 962.30/x
3. Step 3: Cross multiply
   1,404.56x = 1,938.66 × 962.30
4. Step 4: Simplify right side
   1,404.56x = 1,865,572.52
5. Step 5: Solve for x
   x = 1,865,572.52/1,404.56
6. Step 6: Final answer
   x = 1,328.23