Finding the Fourth Proportional to 1,410.78, 1,946.16 and 962.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,410.78 : 1,946.16 = 962.31 : x
2. Step 2: Convert to fraction form
   1,410.78/1,946.16 = 962.31/x
3. Step 3: Cross multiply
   1,410.78x = 1,946.16 × 962.31
4. Step 4: Simplify right side
   1,410.78x = 1,872,809.23
5. Step 5: Solve for x
   x = 1,872,809.23/1,410.78
6. Step 6: Final answer
   x = 1,327.50