Finding the Fourth Proportional to 2,166.48, 3,245.40 and 1,548.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,166.48 : 3,245.40 = 1,548.72 : x
2. Step 2: Convert to fraction form
   2,166.48/3,245.40 = 1,548.72/x
3. Step 3: Cross multiply
   2,166.48x = 3,245.40 × 1,548.72
4. Step 4: Simplify right side
   2,166.48x = 5,026,215.89
5. Step 5: Solve for x
   x = 5,026,215.89/2,166.48
6. Step 6: Final answer
   x = 2,319.99