Finding the Fourth Proportional to 1,764.42, 2,643.18 and 942.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,764.42 : 2,643.18 = 942.40 : x
2. Step 2: Convert to fraction form
   1,764.42/2,643.18 = 942.40/x
3. Step 3: Cross multiply
   1,764.42x = 2,643.18 × 942.40
4. Step 4: Simplify right side
   1,764.42x = 2,490,932.83
5. Step 5: Solve for x
   x = 2,490,932.83/1,764.42
6. Step 6: Final answer
   x = 1,411.76