Finding the Fourth Proportional to 1,669.79, 2,501.03 and 1,018.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,669.79 : 2,501.03 = 1,018.55 : x
2. Step 2: Convert to fraction form
   1,669.79/2,501.03 = 1,018.55/x
3. Step 3: Cross multiply
   1,669.79x = 2,501.03 × 1,018.55
4. Step 4: Simplify right side
   1,669.79x = 2,547,414.15
5. Step 5: Solve for x
   x = 2,547,414.15/1,669.79
6. Step 6: Final answer
   x = 1,525.59