Finding the Fourth Proportional to 3,551.86, 5,328.70 and 1,086.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,551.86 : 5,328.70 = 1,086.83 : x
2. Step 2: Convert to fraction form
   3,551.86/5,328.70 = 1,086.83/x
3. Step 3: Cross multiply
   3,551.86x = 5,328.70 × 1,086.83
4. Step 4: Simplify right side
   3,551.86x = 5,791,361.66
5. Step 5: Solve for x
   x = 5,791,361.66/3,551.86
6. Step 6: Final answer
   x = 1,630.52