Finding the Fourth Proportional to 1,362.40, 1,878.92 and 942.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,362.40 : 1,878.92 = 942.01 : x
2. Step 2: Convert to fraction form
   1,362.40/1,878.92 = 942.01/x
3. Step 3: Cross multiply
   1,362.40x = 1,878.92 × 942.01
4. Step 4: Simplify right side
   1,362.40x = 1,769,961.43
5. Step 5: Solve for x
   x = 1,769,961.43/1,362.40
6. Step 6: Final answer
   x = 1,299.15