Finding the Fourth Proportional to 1,640.78, 2,462.00 and 601.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,640.78 : 2,462.00 = 601.05 : x
2. Step 2: Convert to fraction form
   1,640.78/2,462.00 = 601.05/x
3. Step 3: Cross multiply
   1,640.78x = 2,462.00 × 601.05
4. Step 4: Simplify right side
   1,640.78x = 1,479,782.09
5. Step 5: Solve for x
   x = 1,479,782.09/1,640.78
6. Step 6: Final answer
   x = 901.88