Finding the Fourth Proportional to 2,530.17, 3,490.43 and 2,180.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,530.17 : 3,490.43 = 2,180.25 : x
2. Step 2: Convert to fraction form
   2,530.17/3,490.43 = 2,180.25/x
3. Step 3: Cross multiply
   2,530.17x = 3,490.43 × 2,180.25
4. Step 4: Simplify right side
   2,530.17x = 7,609,999.11
5. Step 5: Solve for x
   x = 7,609,999.11/2,530.17
6. Step 6: Final answer
   x = 3,007.70