Finding the Fourth Proportional to 3,755.01, 5,627.72 and 1,780.64

Step by Step Solution

1. Step 1: Write the proportion equation
   3,755.01 : 5,627.72 = 1,780.64 : x
2. Step 2: Convert to fraction form
   3,755.01/5,627.72 = 1,780.64/x
3. Step 3: Cross multiply
   3,755.01x = 5,627.72 × 1,780.64
4. Step 4: Simplify right side
   3,755.01x = 10,020,943.34
5. Step 5: Solve for x
   x = 10,020,943.34/3,755.01
6. Step 6: Final answer
   x = 2,668.69