Finding the Fourth Proportional to 1,384.83, 2,076.31 and 551.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,384.83 : 2,076.31 = 551.34 : x
2. Step 2: Convert to fraction form
   1,384.83/2,076.31 = 551.34/x
3. Step 3: Cross multiply
   1,384.83x = 2,076.31 × 551.34
4. Step 4: Simplify right side
   1,384.83x = 1,144,752.76
5. Step 5: Solve for x
   x = 1,144,752.76/1,384.83
6. Step 6: Final answer
   x = 826.64