Finding the Fourth Proportional to 2,521.49, 3,479.47 and 1,402.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521.49 : 3,479.47 = 1,402.38 : x
2. Step 2: Convert to fraction form
   2,521.49/3,479.47 = 1,402.38/x
3. Step 3: Cross multiply
   2,521.49x = 3,479.47 × 1,402.38
4. Step 4: Simplify right side
   2,521.49x = 4,879,535.63
5. Step 5: Solve for x
   x = 4,879,535.63/2,521.49
6. Step 6: Final answer
   x = 1,935.18