Finding the Fourth Proportional to 2,521.30, 3,479.34 and 1,402.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521.30 : 3,479.34 = 1,402.22 : x
2. Step 2: Convert to fraction form
   2,521.30/3,479.34 = 1,402.22/x
3. Step 3: Cross multiply
   2,521.30x = 3,479.34 × 1,402.22
4. Step 4: Simplify right side
   2,521.30x = 4,878,800.13
5. Step 5: Solve for x
   x = 4,878,800.13/2,521.30
6. Step 6: Final answer
   x = 1,935.03