Finding the Fourth Proportional to 1,063.89, 1,591.83 and 955.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,063.89 : 1,591.83 = 955.98 : x
2. Step 2: Convert to fraction form
   1,063.89/1,591.83 = 955.98/x
3. Step 3: Cross multiply
   1,063.89x = 1,591.83 × 955.98
4. Step 4: Simplify right side
   1,063.89x = 1,521,752.86
5. Step 5: Solve for x
   x = 1,521,752.86/1,063.89
6. Step 6: Final answer
   x = 1,430.37