Finding the Fourth Proportional to 1,666.48, 2,501.28 and 1,204.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,666.48 : 2,501.28 = 1,204.72 : x
2. Step 2: Convert to fraction form
   1,666.48/2,501.28 = 1,204.72/x
3. Step 3: Cross multiply
   1,666.48x = 2,501.28 × 1,204.72
4. Step 4: Simplify right side
   1,666.48x = 3,013,342.04
5. Step 5: Solve for x
   x = 3,013,342.04/1,666.48
6. Step 6: Final answer
   x = 1,808.21