Finding the Fourth Proportional to 1,540.33, 2,126.35 and 981.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,540.33 : 2,126.35 = 981.56 : x
2. Step 2: Convert to fraction form
   1,540.33/2,126.35 = 981.56/x
3. Step 3: Cross multiply
   1,540.33x = 2,126.35 × 981.56
4. Step 4: Simplify right side
   1,540.33x = 2,087,146.65
5. Step 5: Solve for x
   x = 2,087,146.65/1,540.33
6. Step 6: Final answer
   x = 1,355.00