Finding the Fourth Proportional to 1,857.48, 2,561.94 and 1,362.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,857.48 : 2,561.94 = 1,362.12 : x
2. Step 2: Convert to fraction form
   1,857.48/2,561.94 = 1,362.12/x
3. Step 3: Cross multiply
   1,857.48x = 2,561.94 × 1,362.12
4. Step 4: Simplify right side
   1,857.48x = 3,489,669.71
5. Step 5: Solve for x
   x = 3,489,669.71/1,857.48
6. Step 6: Final answer
   x = 1,878.71