Finding the Fourth Proportional to 2,526.43, 3,486.69 and 1,407.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,526.43 : 3,486.69 = 1,407.34 : x
2. Step 2: Convert to fraction form
   2,526.43/3,486.69 = 1,407.34/x
3. Step 3: Cross multiply
   2,526.43x = 3,486.69 × 1,407.34
4. Step 4: Simplify right side
   2,526.43x = 4,906,940.87
5. Step 5: Solve for x
   x = 4,906,940.87/2,526.43
6. Step 6: Final answer
   x = 1,942.25