Finding the Fourth Proportional to 2,453.75, 3,386.50 and 1,569.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,453.75 : 3,386.50 = 1,569.77 : x
2. Step 2: Convert to fraction form
   2,453.75/3,386.50 = 1,569.77/x
3. Step 3: Cross multiply
   2,453.75x = 3,386.50 × 1,569.77
4. Step 4: Simplify right side
   2,453.75x = 5,316,005.25
5. Step 5: Solve for x
   x = 5,316,005.25/2,453.75
6. Step 6: Final answer
   x = 2,166.49