Finding the Fourth Proportional to 1,362.80, 1,841.40 and 1,362.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,362.80 : 1,841.40 = 1,362.80 : x
2. Step 2: Convert to fraction form
   1,362.80/1,841.40 = 1,362.80/x
3. Step 3: Cross multiply
   1,362.80x = 1,841.40 × 1,362.80
4. Step 4: Simplify right side
   1,362.80x = 2,509,459.92
5. Step 5: Solve for x
   x = 2,509,459.92/1,362.80
6. Step 6: Final answer
   x = 1,841.40