Finding the Fourth Proportional to 1,069.79, 1,602.59 and 606.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,069.79 : 1,602.59 = 606.15 : x
2. Step 2: Convert to fraction form
   1,069.79/1,602.59 = 606.15/x
3. Step 3: Cross multiply
   1,069.79x = 1,602.59 × 606.15
4. Step 4: Simplify right side
   1,069.79x = 971,406.90
5. Step 5: Solve for x
   x = 971,406.90/1,069.79
6. Step 6: Final answer
   x = 908.04