Finding the Fourth Proportional to 2,039.86, 3,058.86 and 652.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,039.86 : 3,058.86 = 652.88 : x
2. Step 2: Convert to fraction form
   2,039.86/3,058.86 = 652.88/x
3. Step 3: Cross multiply
   2,039.86x = 3,058.86 × 652.88
4. Step 4: Simplify right side
   2,039.86x = 1,997,068.52
5. Step 5: Solve for x
   x = 1,997,068.52/2,039.86
6. Step 6: Final answer
   x = 979.02