Finding the Fourth Proportional to 1,078.17, 1,487.94 and 606.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,078.17 : 1,487.94 = 606.12 : x
2. Step 2: Convert to fraction form
   1,078.17/1,487.94 = 606.12/x
3. Step 3: Cross multiply
   1,078.17x = 1,487.94 × 606.12
4. Step 4: Simplify right side
   1,078.17x = 901,870.19
5. Step 5: Solve for x
   x = 901,870.19/1,078.17
6. Step 6: Final answer
   x = 836.48