Finding the Fourth Proportional to 2,010.69, 3,001.14 and 1,961.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,010.69 : 3,001.14 = 1,961.55 : x
2. Step 2: Convert to fraction form
   2,010.69/3,001.14 = 1,961.55/x
3. Step 3: Cross multiply
   2,010.69x = 3,001.14 × 1,961.55
4. Step 4: Simplify right side
   2,010.69x = 5,886,886.17
5. Step 5: Solve for x
   x = 5,886,886.17/2,010.69
6. Step 6: Final answer
   x = 2,927.79