Finding the Fourth Proportional to 1,880.77, 2,816.29 and 1,297.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,880.77 : 2,816.29 = 1,297.57 : x
2. Step 2: Convert to fraction form
   1,880.77/2,816.29 = 1,297.57/x
3. Step 3: Cross multiply
   1,880.77x = 2,816.29 × 1,297.57
4. Step 4: Simplify right side
   1,880.77x = 3,654,333.42
5. Step 5: Solve for x
   x = 3,654,333.42/1,880.77
6. Step 6: Final answer
   x = 1,943.00