Finding the Fourth Proportional to 2,991.56, 4,486.34 and 1,142.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,991.56 : 4,486.34 = 1,142.24 : x
2. Step 2: Convert to fraction form
   2,991.56/4,486.34 = 1,142.24/x
3. Step 3: Cross multiply
   2,991.56x = 4,486.34 × 1,142.24
4. Step 4: Simplify right side
   2,991.56x = 5,124,477.00
5. Step 5: Solve for x
   x = 5,124,477.00/2,991.56
6. Step 6: Final answer
   x = 1,712.98