Finding the Fourth Proportional to 1,429.68, 2,145.60 and 942.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.68 : 2,145.60 = 942.56 : x
2. Step 2: Convert to fraction form
   1,429.68/2,145.60 = 942.56/x
3. Step 3: Cross multiply
   1,429.68x = 2,145.60 × 942.56
4. Step 4: Simplify right side
   1,429.68x = 2,022,356.74
5. Step 5: Solve for x
   x = 2,022,356.74/1,429.68
6. Step 6: Final answer
   x = 1,414.55