Finding the Fourth Proportional to 1,300.50, 1,945.80 and 887.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.50 : 1,945.80 = 887.76 : x
2. Step 2: Convert to fraction form
   1,300.50/1,945.80 = 887.76/x
3. Step 3: Cross multiply
   1,300.50x = 1,945.80 × 887.76
4. Step 4: Simplify right side
   1,300.50x = 1,727,403.41
5. Step 5: Solve for x
   x = 1,727,403.41/1,300.50
6. Step 6: Final answer
   x = 1,328.26