Finding the Fourth Proportional to 2,072.89, 2,858.43 and 1,600.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,072.89 : 2,858.43 = 1,600.86 : x
2. Step 2: Convert to fraction form
   2,072.89/2,858.43 = 1,600.86/x
3. Step 3: Cross multiply
   2,072.89x = 2,858.43 × 1,600.86
4. Step 4: Simplify right side
   2,072.89x = 4,575,946.25
5. Step 5: Solve for x
   x = 4,575,946.25/2,072.89
6. Step 6: Final answer
   x = 2,207.52