Finding the Fourth Proportional to 1,106.93, 1,527.56 and 609.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,106.93 : 1,527.56 = 609.57 : x
2. Step 2: Convert to fraction form
   1,106.93/1,527.56 = 609.57/x
3. Step 3: Cross multiply
   1,106.93x = 1,527.56 × 609.57
4. Step 4: Simplify right side
   1,106.93x = 931,156.27
5. Step 5: Solve for x
   x = 931,156.27/1,106.93
6. Step 6: Final answer
   x = 841.20