Finding the Fourth Proportional to 1,164.06, 1,744.83 and 615.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,164.06 : 1,744.83 = 615.69 : x
2. Step 2: Convert to fraction form
   1,164.06/1,744.83 = 615.69/x
3. Step 3: Cross multiply
   1,164.06x = 1,744.83 × 615.69
4. Step 4: Simplify right side
   1,164.06x = 1,074,274.38
5. Step 5: Solve for x
   x = 1,074,274.38/1,164.06
6. Step 6: Final answer
   x = 922.87