Finding the Fourth Proportional to 1,100.89, 1,652.06 and 451.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.89 : 1,652.06 = 451.63 : x
2. Step 2: Convert to fraction form
   1,100.89/1,652.06 = 451.63/x
3. Step 3: Cross multiply
   1,100.89x = 1,652.06 × 451.63
4. Step 4: Simplify right side
   1,100.89x = 746,119.86
5. Step 5: Solve for x
   x = 746,119.86/1,100.89
6. Step 6: Final answer
   x = 677.74