Finding the Fourth Proportional to 2,157.56, 3,235.53 and 1,002.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,157.56 : 3,235.53 = 1,002.50 : x
2. Step 2: Convert to fraction form
   2,157.56/3,235.53 = 1,002.50/x
3. Step 3: Cross multiply
   2,157.56x = 3,235.53 × 1,002.50
4. Step 4: Simplify right side
   2,157.56x = 3,243,618.83
5. Step 5: Solve for x
   x = 3,243,618.83/2,157.56
6. Step 6: Final answer
   x = 1,503.37