Finding the Fourth Proportional to 1,661.58, 2,495.34 and 1,576.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,661.58 : 2,495.34 = 1,576.53 : x
2. Step 2: Convert to fraction form
   1,661.58/2,495.34 = 1,576.53/x
3. Step 3: Cross multiply
   1,661.58x = 2,495.34 × 1,576.53
4. Step 4: Simplify right side
   1,661.58x = 3,933,978.37
5. Step 5: Solve for x
   x = 3,933,978.37/1,661.58
6. Step 6: Final answer
   x = 2,367.61