Finding the Fourth Proportional to 1,559.86, 2,152.83 and 962.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,559.86 : 2,152.83 = 962.45 : x
2. Step 2: Convert to fraction form
   1,559.86/2,152.83 = 962.45/x
3. Step 3: Cross multiply
   1,559.86x = 2,152.83 × 962.45
4. Step 4: Simplify right side
   1,559.86x = 2,071,991.23
5. Step 5: Solve for x
   x = 2,071,991.23/1,559.86
6. Step 6: Final answer
   x = 1,328.32