Finding the Fourth Proportional to 1,434.42, 1,977.50 and 962.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,434.42 : 1,977.50 = 962.40 : x
2. Step 2: Convert to fraction form
   1,434.42/1,977.50 = 962.40/x
3. Step 3: Cross multiply
   1,434.42x = 1,977.50 × 962.40
4. Step 4: Simplify right side
   1,434.42x = 1,903,146
5. Step 5: Solve for x
   x = 1,903,146/1,434.42
6. Step 6: Final answer
   x = 1,326.77