Finding the Fourth Proportional to 1,376.73, 2,061.24 and 888.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,376.73 : 2,061.24 = 888.30 : x
2. Step 2: Convert to fraction form
   1,376.73/2,061.24 = 888.30/x
3. Step 3: Cross multiply
   1,376.73x = 2,061.24 × 888.30
4. Step 4: Simplify right side
   1,376.73x = 1,830,999.49
5. Step 5: Solve for x
   x = 1,830,999.49/1,376.73
6. Step 6: Final answer
   x = 1,329.96