Finding the Fourth Proportional to 1,764.72, 2,641.68 and 1,416.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,764.72 : 2,641.68 = 1,416.48 : x
2. Step 2: Convert to fraction form
   1,764.72/2,641.68 = 1,416.48/x
3. Step 3: Cross multiply
   1,764.72x = 2,641.68 × 1,416.48
4. Step 4: Simplify right side
   1,764.72x = 3,741,886.89
5. Step 5: Solve for x
   x = 3,741,886.89/1,764.72
6. Step 6: Final answer
   x = 2,120.39