Finding the Fourth Proportional to 3,651.72, 5,476.77 and 1,054.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,651.72 : 5,476.77 = 1,054.86 : x
2. Step 2: Convert to fraction form
   3,651.72/5,476.77 = 1,054.86/x
3. Step 3: Cross multiply
   3,651.72x = 5,476.77 × 1,054.86
4. Step 4: Simplify right side
   3,651.72x = 5,777,225.60
5. Step 5: Solve for x
   x = 5,777,225.60/3,651.72
6. Step 6: Final answer
   x = 1,582.06