Finding the Fourth Proportional to 1,885.76, 2,601.96 and 1,222.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,885.76 : 2,601.96 = 1,222.52 : x
2. Step 2: Convert to fraction form
   1,885.76/2,601.96 = 1,222.52/x
3. Step 3: Cross multiply
   1,885.76x = 2,601.96 × 1,222.52
4. Step 4: Simplify right side
   1,885.76x = 3,180,948.14
5. Step 5: Solve for x
   x = 3,180,948.14/1,885.76
6. Step 6: Final answer
   x = 1,686.83