Finding the Fourth Proportional to 2,376.63, 3,563.01 and 991.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,376.63 : 3,563.01 = 991.01 : x
2. Step 2: Convert to fraction form
   2,376.63/3,563.01 = 991.01/x
3. Step 3: Cross multiply
   2,376.63x = 3,563.01 × 991.01
4. Step 4: Simplify right side
   2,376.63x = 3,530,978.54
5. Step 5: Solve for x
   x = 3,530,978.54/2,376.63
6. Step 6: Final answer
   x = 1,485.71