Finding the Fourth Proportional to 2,284.55, 3,152.82 and 1,289.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,284.55 : 3,152.82 = 1,289.93 : x
2. Step 2: Convert to fraction form
   2,284.55/3,152.82 = 1,289.93/x
3. Step 3: Cross multiply
   2,284.55x = 3,152.82 × 1,289.93
4. Step 4: Simplify right side
   2,284.55x = 4,066,917.10
5. Step 5: Solve for x
   x = 4,066,917.10/2,284.55
6. Step 6: Final answer
   x = 1,780.18