Finding the Fourth Proportional to 1,100.08, 1,648.58 and 514.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.08 : 1,648.58 = 514.45 : x
2. Step 2: Convert to fraction form
   1,100.08/1,648.58 = 514.45/x
3. Step 3: Cross multiply
   1,100.08x = 1,648.58 × 514.45
4. Step 4: Simplify right side
   1,100.08x = 848,111.98
5. Step 5: Solve for x
   x = 848,111.98/1,100.08
6. Step 6: Final answer
   x = 770.95