Finding the Fourth Proportional to 1,562.37, 2,155.93 and 964.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,562.37 : 2,155.93 = 964.69 : x
2. Step 2: Convert to fraction form
   1,562.37/2,155.93 = 964.69/x
3. Step 3: Cross multiply
   1,562.37x = 2,155.93 × 964.69
4. Step 4: Simplify right side
   1,562.37x = 2,079,804.11
5. Step 5: Solve for x
   x = 2,079,804.11/1,562.37
6. Step 6: Final answer
   x = 1,331.19