Finding the Fourth Proportional to 3,640.01, 5,460.89 and 1,042.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,640.01 : 5,460.89 = 1,042.88 : x
2. Step 2: Convert to fraction form
   3,640.01/5,460.89 = 1,042.88/x
3. Step 3: Cross multiply
   3,640.01x = 5,460.89 × 1,042.88
4. Step 4: Simplify right side
   3,640.01x = 5,695,020.44
5. Step 5: Solve for x
   x = 5,695,020.44/3,640.01
6. Step 6: Final answer
   x = 1,564.56