Finding the Fourth Proportional to 3,650.63, 5,476.86 and 1,053.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,650.63 : 5,476.86 = 1,053.56 : x
2. Step 2: Convert to fraction form
   3,650.63/5,476.86 = 1,053.56/x
3. Step 3: Cross multiply
   3,650.63x = 5,476.86 × 1,053.56
4. Step 4: Simplify right side
   3,650.63x = 5,770,214.31
5. Step 5: Solve for x
   x = 5,770,214.31/3,650.63
6. Step 6: Final answer
   x = 1,580.61