Finding the Fourth Proportional to 3,576.56, 5,363.13 and 1,111.41

Step by Step Solution

1. Step 1: Write the proportion equation
   3,576.56 : 5,363.13 = 1,111.41 : x
2. Step 2: Convert to fraction form
   3,576.56/5,363.13 = 1,111.41/x
3. Step 3: Cross multiply
   3,576.56x = 5,363.13 × 1,111.41
4. Step 4: Simplify right side
   3,576.56x = 5,960,636.31
5. Step 5: Solve for x
   x = 5,960,636.31/3,576.56
6. Step 6: Final answer
   x = 1,666.59