Finding the Fourth Proportional to 1,866.86, 2,575.73 and 1,204.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,866.86 : 2,575.73 = 1,204.10 : x
2. Step 2: Convert to fraction form
   1,866.86/2,575.73 = 1,204.10/x
3. Step 3: Cross multiply
   1,866.86x = 2,575.73 × 1,204.10
4. Step 4: Simplify right side
   1,866.86x = 3,101,423.61
5. Step 5: Solve for x
   x = 3,101,423.61/1,866.86
6. Step 6: Final answer
   x = 1,661.30