Finding the Fourth Proportional to 3,663.31, 5,494.88 and 890.00

Step by Step Solution

1. Step 1: Write the proportion equation
   3,663.31 : 5,494.88 = 890.00 : x
2. Step 2: Convert to fraction form
   3,663.31/5,494.88 = 890.00/x
3. Step 3: Cross multiply
   3,663.31x = 5,494.88 × 890.00
4. Step 4: Simplify right side
   3,663.31x = 4,890,417.95
5. Step 5: Solve for x
   x = 4,890,417.95/3,663.31
6. Step 6: Final answer
   x = 1,334.97