Finding the Fourth Proportional to 3,650.76, 5,476.68 and 1,053.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,650.76 : 5,476.68 = 1,053.72 : x
2. Step 2: Convert to fraction form
   3,650.76/5,476.68 = 1,053.72/x
3. Step 3: Cross multiply
   3,650.76x = 5,476.68 × 1,053.72
4. Step 4: Simplify right side
   3,650.76x = 5,770,887.25
5. Step 5: Solve for x
   x = 5,770,887.25/3,650.76
6. Step 6: Final answer
   x = 1,580.74