Finding the Fourth Proportional to 1,930.56, 2,891.80 and 1,600.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,930.56 : 2,891.80 = 1,600.72 : x
2. Step 2: Convert to fraction form
   1,930.56/2,891.80 = 1,600.72/x
3. Step 3: Cross multiply
   1,930.56x = 2,891.80 × 1,600.72
4. Step 4: Simplify right side
   1,930.56x = 4,628,962.10
5. Step 5: Solve for x
   x = 4,628,962.10/1,930.56
6. Step 6: Final answer
   x = 2,397.73