Finding the Fourth Proportional to 1,669.91, 2,501.22 and 1,018.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,669.91 : 2,501.22 = 1,018.67 : x
2. Step 2: Convert to fraction form
   1,669.91/2,501.22 = 1,018.67/x
3. Step 3: Cross multiply
   1,669.91x = 2,501.22 × 1,018.67
4. Step 4: Simplify right side
   1,669.91x = 2,547,917.78
5. Step 5: Solve for x
   x = 2,547,917.78/1,669.91
6. Step 6: Final answer
   x = 1,525.78