Finding the Fourth Proportional to 1,405.46, 1,937.72 and 962.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,405.46 : 1,937.72 = 962.60 : x
2. Step 2: Convert to fraction form
   1,405.46/1,937.72 = 962.60/x
3. Step 3: Cross multiply
   1,405.46x = 1,937.72 × 962.60
4. Step 4: Simplify right side
   1,405.46x = 1,865,249.27
5. Step 5: Solve for x
   x = 1,865,249.27/1,405.46
6. Step 6: Final answer
   x = 1,327.15