Finding the Fourth Proportional to 2,670.82, 4,005.77 and 722.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,670.82 : 4,005.77 = 722.87 : x
2. Step 2: Convert to fraction form
   2,670.82/4,005.77 = 722.87/x
3. Step 3: Cross multiply
   2,670.82x = 4,005.77 × 722.87
4. Step 4: Simplify right side
   2,670.82x = 2,895,627.32
5. Step 5: Solve for x
   x = 2,895,627.32/2,670.82
6. Step 6: Final answer
   x = 1,084.17