Finding the Fourth Proportional to 2,555.31, 3,526.26 and 1,436.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,555.31 : 3,526.26 = 1,436.22 : x
2. Step 2: Convert to fraction form
   2,555.31/3,526.26 = 1,436.22/x
3. Step 3: Cross multiply
   2,555.31x = 3,526.26 × 1,436.22
4. Step 4: Simplify right side
   2,555.31x = 5,064,485.14
5. Step 5: Solve for x
   x = 5,064,485.14/2,555.31
6. Step 6: Final answer
   x = 1,981.95