Finding the Fourth Proportional to 1,841.56, 2,542.62 and 1,320.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,841.56 : 2,542.62 = 1,320.28 : x
2. Step 2: Convert to fraction form
   1,841.56/2,542.62 = 1,320.28/x
3. Step 3: Cross multiply
   1,841.56x = 2,542.62 × 1,320.28
4. Step 4: Simplify right side
   1,841.56x = 3,356,970.33
5. Step 5: Solve for x
   x = 3,356,970.33/1,841.56
6. Step 6: Final answer
   x = 1,822.89