Finding the Fourth Proportional to 1,688.56, 2,518.52 and 1,593.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,688.56 : 2,518.52 = 1,593.52 : x
2. Step 2: Convert to fraction form
   1,688.56/2,518.52 = 1,593.52/x
3. Step 3: Cross multiply
   1,688.56x = 2,518.52 × 1,593.52
4. Step 4: Simplify right side
   1,688.56x = 4,013,311.99
5. Step 5: Solve for x
   x = 4,013,311.99/1,688.56
6. Step 6: Final answer
   x = 2,376.77