Finding the Fourth Proportional to 1,173.51, 1,619.37 and 649.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,173.51 : 1,619.37 = 649.50 : x
2. Step 2: Convert to fraction form
   1,173.51/1,619.37 = 649.50/x
3. Step 3: Cross multiply
   1,173.51x = 1,619.37 × 649.50
4. Step 4: Simplify right side
   1,173.51x = 1,051,780.82
5. Step 5: Solve for x
   x = 1,051,780.82/1,173.51
6. Step 6: Final answer
   x = 896.27