Finding the Fourth Proportional to 1,535.98, 2,118.81 and 976.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,535.98 : 2,118.81 = 976.07 : x
2. Step 2: Convert to fraction form
   1,535.98/2,118.81 = 976.07/x
3. Step 3: Cross multiply
   1,535.98x = 2,118.81 × 976.07
4. Step 4: Simplify right side
   1,535.98x = 2,068,106.88
5. Step 5: Solve for x
   x = 2,068,106.88/1,535.98
6. Step 6: Final answer
   x = 1,346.44