Finding the Fourth Proportional to 1,885.60, 2,604.62 and 1,571.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,885.60 : 2,604.62 = 1,571.89 : x
2. Step 2: Convert to fraction form
   1,885.60/2,604.62 = 1,571.89/x
3. Step 3: Cross multiply
   1,885.60x = 2,604.62 × 1,571.89
4. Step 4: Simplify right side
   1,885.60x = 4,094,155.25
5. Step 5: Solve for x
   x = 4,094,155.25/1,885.60
6. Step 6: Final answer
   x = 2,171.28