Finding the Fourth Proportional to 1,185.00, 1,635.31 and 653.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,185.00 : 1,635.31 = 653.90 : x
2. Step 2: Convert to fraction form
   1,185.00/1,635.31 = 653.90/x
3. Step 3: Cross multiply
   1,185.00x = 1,635.31 × 653.90
4. Step 4: Simplify right side
   1,185.00x = 1,069,323.69
5. Step 5: Solve for x
   x = 1,069,323.69/1,185.00
6. Step 6: Final answer
   x = 902.38