Finding the Fourth Proportional to 1,764.17, 2,642.81 and 942.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,764.17 : 2,642.81 = 942.15 : x
2. Step 2: Convert to fraction form
   1,764.17/2,642.81 = 942.15/x
3. Step 3: Cross multiply
   1,764.17x = 2,642.81 × 942.15
4. Step 4: Simplify right side
   1,764.17x = 2,489,918.73
5. Step 5: Solve for x
   x = 2,489,918.73/1,764.17
6. Step 6: Final answer
   x = 1,411.39