Finding the Fourth Proportional to 2,068.56, 3,102.03 and 913.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068.56 : 3,102.03 = 913.50 : x
2. Step 2: Convert to fraction form
   2,068.56/3,102.03 = 913.50/x
3. Step 3: Cross multiply
   2,068.56x = 3,102.03 × 913.50
4. Step 4: Simplify right side
   2,068.56x = 2,833,704.41
5. Step 5: Solve for x
   x = 2,833,704.41/2,068.56
6. Step 6: Final answer
   x = 1,369.89