Finding the Fourth Proportional to 2,395.56, 3,572.50 and 2,130.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,395.56 : 3,572.50 = 2,130.09 : x
2. Step 2: Convert to fraction form
   2,395.56/3,572.50 = 2,130.09/x
3. Step 3: Cross multiply
   2,395.56x = 3,572.50 × 2,130.09
4. Step 4: Simplify right side
   2,395.56x = 7,609,746.53
5. Step 5: Solve for x
   x = 7,609,746.53/2,395.56
6. Step 6: Final answer
   x = 3,176.60