Finding the Fourth Proportional to 2,696.67, 3,720.83 and 1,577.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,696.67 : 3,720.83 = 1,577.57 : x
2. Step 2: Convert to fraction form
   2,696.67/3,720.83 = 1,577.57/x
3. Step 3: Cross multiply
   2,696.67x = 3,720.83 × 1,577.57
4. Step 4: Simplify right side
   2,696.67x = 5,869,843.29
5. Step 5: Solve for x
   x = 5,869,843.29/2,696.67
6. Step 6: Final answer
   x = 2,176.70