Finding the Fourth Proportional to 2,051.72, 3,077.85 and 1,010.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,051.72 : 3,077.85 = 1,010.87 : x
2. Step 2: Convert to fraction form
   2,051.72/3,077.85 = 1,010.87/x
3. Step 3: Cross multiply
   2,051.72x = 3,077.85 × 1,010.87
4. Step 4: Simplify right side
   2,051.72x = 3,111,306.23
5. Step 5: Solve for x
   x = 3,111,306.23/2,051.72
6. Step 6: Final answer
   x = 1,516.44