Finding the Fourth Proportional to 1,615.41, 2,227.50 and 1,090.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,615.41 : 2,227.50 = 1,090.53 : x
2. Step 2: Convert to fraction form
   1,615.41/2,227.50 = 1,090.53/x
3. Step 3: Cross multiply
   1,615.41x = 2,227.50 × 1,090.53
4. Step 4: Simplify right side
   1,615.41x = 2,429,155.58
5. Step 5: Solve for x
   x = 2,429,155.58/1,615.41
6. Step 6: Final answer
   x = 1,503.74