Finding the Fourth Proportional to 1,669.02, 2,498.10 and 1,230.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,669.02 : 2,498.10 = 1,230.10 : x
2. Step 2: Convert to fraction form
   1,669.02/2,498.10 = 1,230.10/x
3. Step 3: Cross multiply
   1,669.02x = 2,498.10 × 1,230.10
4. Step 4: Simplify right side
   1,669.02x = 3,072,912.81
5. Step 5: Solve for x
   x = 3,072,912.81/1,669.02
6. Step 6: Final answer
   x = 1,841.15