Finding the Fourth Proportional to 2,530.49, 3,490.61 and 1,521.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,530.49 : 3,490.61 = 1,521.49 : x
2. Step 2: Convert to fraction form
   2,530.49/3,490.61 = 1,521.49/x
3. Step 3: Cross multiply
   2,530.49x = 3,490.61 × 1,521.49
4. Step 4: Simplify right side
   2,530.49x = 5,310,933.83
5. Step 5: Solve for x
   x = 5,310,933.83/2,530.49
6. Step 6: Final answer
   x = 2,098.78