Finding the Fourth Proportional to 1,404.87, 2,107.55 and 527.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.87 : 2,107.55 = 527.34 : x
2. Step 2: Convert to fraction form
   1,404.87/2,107.55 = 527.34/x
3. Step 3: Cross multiply
   1,404.87x = 2,107.55 × 527.34
4. Step 4: Simplify right side
   1,404.87x = 1,111,392.78
5. Step 5: Solve for x
   x = 1,111,392.78/1,404.87
6. Step 6: Final answer
   x = 791.10