Finding the Fourth Proportional to 1,536.78, 2,119.98 and 976.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,536.78 : 2,119.98 = 976.33 : x
2. Step 2: Convert to fraction form
   1,536.78/2,119.98 = 976.33/x
3. Step 3: Cross multiply
   1,536.78x = 2,119.98 × 976.33
4. Step 4: Simplify right side
   1,536.78x = 2,069,800.07
5. Step 5: Solve for x
   x = 2,069,800.07/1,536.78
6. Step 6: Final answer
   x = 1,346.84