Finding the Fourth Proportional to 2,526.29, 3,486.34 and 1,407.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,526.29 : 3,486.34 = 1,407.21 : x
2. Step 2: Convert to fraction form
   2,526.29/3,486.34 = 1,407.21/x
3. Step 3: Cross multiply
   2,526.29x = 3,486.34 × 1,407.21
4. Step 4: Simplify right side
   2,526.29x = 4,906,001.20
5. Step 5: Solve for x
   x = 4,906,001.20/2,526.29
6. Step 6: Final answer
   x = 1,941.98