Finding the Fourth Proportional to 2,362.79, 3,541.68 and 1,128.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,362.79 : 3,541.68 = 1,128.51 : x
2. Step 2: Convert to fraction form
   2,362.79/3,541.68 = 1,128.51/x
3. Step 3: Cross multiply
   2,362.79x = 3,541.68 × 1,128.51
4. Step 4: Simplify right side
   2,362.79x = 3,996,821.30
5. Step 5: Solve for x
   x = 3,996,821.30/2,362.79
6. Step 6: Final answer
   x = 1,691.57