Finding the Fourth Proportional to 2,012.42, 2,777.33 and 1,173.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.42 : 2,777.33 = 1,173.06 : x
2. Step 2: Convert to fraction form
   2,012.42/2,777.33 = 1,173.06/x
3. Step 3: Cross multiply
   2,012.42x = 2,777.33 × 1,173.06
4. Step 4: Simplify right side
   2,012.42x = 3,257,968.86
5. Step 5: Solve for x
   x = 3,257,968.86/2,012.42
6. Step 6: Final answer
   x = 1,618.93