Finding the Fourth Proportional to 2,014.61, 3,020.78 and 917.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,014.61 : 3,020.78 = 917.93 : x
2. Step 2: Convert to fraction form
   2,014.61/3,020.78 = 917.93/x
3. Step 3: Cross multiply
   2,014.61x = 3,020.78 × 917.93
4. Step 4: Simplify right side
   2,014.61x = 2,772,874.43
5. Step 5: Solve for x
   x = 2,772,874.43/2,014.61
6. Step 6: Final answer
   x = 1,376.39