Finding the Fourth Proportional to 1,615.51, 2,422.31 and 1,156.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,615.51 : 2,422.31 = 1,156.24 : x
2. Step 2: Convert to fraction form
   1,615.51/2,422.31 = 1,156.24/x
3. Step 3: Cross multiply
   1,615.51x = 2,422.31 × 1,156.24
4. Step 4: Simplify right side
   1,615.51x = 2,800,753.82
5. Step 5: Solve for x
   x = 2,800,753.82/1,615.51
6. Step 6: Final answer
   x = 1,733.67