Finding the Fourth Proportional to 3,755.54, 5,631.89 and 1,256.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,755.54 : 5,631.89 = 1,256.22 : x
2. Step 2: Convert to fraction form
   3,755.54/5,631.89 = 1,256.22/x
3. Step 3: Cross multiply
   3,755.54x = 5,631.89 × 1,256.22
4. Step 4: Simplify right side
   3,755.54x = 7,074,886.57
5. Step 5: Solve for x
   x = 7,074,886.57/3,755.54
6. Step 6: Final answer
   x = 1,883.86