Finding the Fourth Proportional to 1,650.91, 2,278.15 and 942.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,650.91 : 2,278.15 = 942.79 : x
2. Step 2: Convert to fraction form
   1,650.91/2,278.15 = 942.79/x
3. Step 3: Cross multiply
   1,650.91x = 2,278.15 × 942.79
4. Step 4: Simplify right side
   1,650.91x = 2,147,817.04
5. Step 5: Solve for x
   x = 2,147,817.04/1,650.91
6. Step 6: Final answer
   x = 1,300.99