Finding the Fourth Proportional to 2,989.98, 4,484.34 and 1,042.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,989.98 : 4,484.34 = 1,042.38 : x
2. Step 2: Convert to fraction form
   2,989.98/4,484.34 = 1,042.38/x
3. Step 3: Cross multiply
   2,989.98x = 4,484.34 × 1,042.38
4. Step 4: Simplify right side
   2,989.98x = 4,674,386.33
5. Step 5: Solve for x
   x = 4,674,386.33/2,989.98
6. Step 6: Final answer
   x = 1,563.35