Finding the Fourth Proportional to 2,012.62, 2,777.30 and 1,173.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.62 : 2,777.30 = 1,173.46 : x
2. Step 2: Convert to fraction form
   2,012.62/2,777.30 = 1,173.46/x
3. Step 3: Cross multiply
   2,012.62x = 2,777.30 × 1,173.46
4. Step 4: Simplify right side
   2,012.62x = 3,259,042.05
5. Step 5: Solve for x
   x = 3,259,042.05/2,012.62
6. Step 6: Final answer
   x = 1,619.31