Finding the Fourth Proportional to 3,755.83, 5,631.83 and 1,256.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,755.83 : 5,631.83 = 1,256.12 : x
2. Step 2: Convert to fraction form
   3,755.83/5,631.83 = 1,256.12/x
3. Step 3: Cross multiply
   3,755.83x = 5,631.83 × 1,256.12
4. Step 4: Simplify right side
   3,755.83x = 7,074,254.30
5. Step 5: Solve for x
   x = 7,074,254.30/3,755.83
6. Step 6: Final answer
   x = 1,883.54