Finding the Fourth Proportional to 1,100.69, 1,518.54 and 707.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.69 : 1,518.54 = 707.93 : x
2. Step 2: Convert to fraction form
   1,100.69/1,518.54 = 707.93/x
3. Step 3: Cross multiply
   1,100.69x = 1,518.54 × 707.93
4. Step 4: Simplify right side
   1,100.69x = 1,075,012.43
5. Step 5: Solve for x
   x = 1,075,012.43/1,100.69
6. Step 6: Final answer
   x = 976.68