Finding the Fourth Proportional to 2,526.21, 3,485.61 and 1,531.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,526.21 : 3,485.61 = 1,531.49 : x
2. Step 2: Convert to fraction form
   2,526.21/3,485.61 = 1,531.49/x
3. Step 3: Cross multiply
   2,526.21x = 3,485.61 × 1,531.49
4. Step 4: Simplify right side
   2,526.21x = 5,338,159.43
5. Step 5: Solve for x
   x = 5,338,159.43/2,526.21
6. Step 6: Final answer
   x = 2,113.11