Finding the Fourth Proportional to 1,812.86, 2,714.41 and 945.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,812.86 : 2,714.41 = 945.34 : x
2. Step 2: Convert to fraction form
   1,812.86/2,714.41 = 945.34/x
3. Step 3: Cross multiply
   1,812.86x = 2,714.41 × 945.34
4. Step 4: Simplify right side
   1,812.86x = 2,566,040.35
5. Step 5: Solve for x
   x = 2,566,040.35/1,812.86
6. Step 6: Final answer
   x = 1,415.47