Finding the Fourth Proportional to 1,099.94, 1,650.06 and 406.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,099.94 : 1,650.06 = 406.52 : x
2. Step 2: Convert to fraction form
   1,099.94/1,650.06 = 406.52/x
3. Step 3: Cross multiply
   1,099.94x = 1,650.06 × 406.52
4. Step 4: Simplify right side
   1,099.94x = 670,782.39
5. Step 5: Solve for x
   x = 670,782.39/1,099.94
6. Step 6: Final answer
   x = 609.84