Finding the Fourth Proportional to 2,077.35, 3,116.48 and 761.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,077.35 : 3,116.48 = 761.05 : x
2. Step 2: Convert to fraction form
   2,077.35/3,116.48 = 761.05/x
3. Step 3: Cross multiply
   2,077.35x = 3,116.48 × 761.05
4. Step 4: Simplify right side
   2,077.35x = 2,371,779.66
5. Step 5: Solve for x
   x = 2,371,779.66/2,077.35
6. Step 6: Final answer
   x = 1,141.74