Finding the Fourth Proportional to 1,100.50, 1,651.79 and 515.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.50 : 1,651.79 = 515.93 : x
2. Step 2: Convert to fraction form
   1,100.50/1,651.79 = 515.93/x
3. Step 3: Cross multiply
   1,100.50x = 1,651.79 × 515.93
4. Step 4: Simplify right side
   1,100.50x = 852,208.01
5. Step 5: Solve for x
   x = 852,208.01/1,100.50
6. Step 6: Final answer
   x = 774.38