Finding the Fourth Proportional to 2,345.00, 3,519.05 and 2,157.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,345.00 : 3,519.05 = 2,157.30 : x
2. Step 2: Convert to fraction form
   2,345.00/3,519.05 = 2,157.30/x
3. Step 3: Cross multiply
   2,345.00x = 3,519.05 × 2,157.30
4. Step 4: Simplify right side
   2,345.00x = 7,591,635.78
5. Step 5: Solve for x
   x = 7,591,635.78/2,345.00
6. Step 6: Final answer
   x = 3,237.38