Finding the Fourth Proportional to 2,993.17, 4,487.91 and 1,142.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,993.17 : 4,487.91 = 1,142.30 : x
2. Step 2: Convert to fraction form
   2,993.17/4,487.91 = 1,142.30/x
3. Step 3: Cross multiply
   2,993.17x = 4,487.91 × 1,142.30
4. Step 4: Simplify right side
   2,993.17x = 5,126,539.59
5. Step 5: Solve for x
   x = 5,126,539.59/2,993.17
6. Step 6: Final answer
   x = 1,712.75