Finding the Fourth Proportional to 1,555.57, 2,321.98 and 1,371.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,555.57 : 2,321.98 = 1,371.05 : x
2. Step 2: Convert to fraction form
   1,555.57/2,321.98 = 1,371.05/x
3. Step 3: Cross multiply
   1,555.57x = 2,321.98 × 1,371.05
4. Step 4: Simplify right side
   1,555.57x = 3,183,538.02
5. Step 5: Solve for x
   x = 3,183,538.02/1,555.57
6. Step 6: Final answer
   x = 2,046.54