Finding the Fourth Proportional to 2,521.17, 3,479.76 and 1,402.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521.17 : 3,479.76 = 1,402.49 : x
2. Step 2: Convert to fraction form
   2,521.17/3,479.76 = 1,402.49/x
3. Step 3: Cross multiply
   2,521.17x = 3,479.76 × 1,402.49
4. Step 4: Simplify right side
   2,521.17x = 4,880,328.60
5. Step 5: Solve for x
   x = 4,880,328.60/2,521.17
6. Step 6: Final answer
   x = 1,935.74