Finding the Fourth Proportional to 2,790.56, 3,851.01 and 1,531.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,790.56 : 3,851.01 = 1,531.61 : x
2. Step 2: Convert to fraction form
   2,790.56/3,851.01 = 1,531.61/x
3. Step 3: Cross multiply
   2,790.56x = 3,851.01 × 1,531.61
4. Step 4: Simplify right side
   2,790.56x = 5,898,237.77
5. Step 5: Solve for x
   x = 5,898,237.77/2,790.56
6. Step 6: Final answer
   x = 2,113.64