Finding the Fourth Proportional to 3,784.34, 5,688.66 and 3,513.80

Step by Step Solution

1. Step 1: Write the proportion equation
   3,784.34 : 5,688.66 = 3,513.80 : x
2. Step 2: Convert to fraction form
   3,784.34/5,688.66 = 3,513.80/x
3. Step 3: Cross multiply
   3,784.34x = 5,688.66 × 3,513.80
4. Step 4: Simplify right side
   3,784.34x = 19,988,813.51
5. Step 5: Solve for x
   x = 19,988,813.51/3,784.34
6. Step 6: Final answer
   x = 5,281.98