Finding the Fourth Proportional to 1,435.53, 1,978.79 and 937.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,435.53 : 1,978.79 = 937.92 : x
2. Step 2: Convert to fraction form
   1,435.53/1,978.79 = 937.92/x
3. Step 3: Cross multiply
   1,435.53x = 1,978.79 × 937.92
4. Step 4: Simplify right side
   1,435.53x = 1,855,942.03
5. Step 5: Solve for x
   x = 1,855,942.03/1,435.53
6. Step 6: Final answer
   x = 1,292.86