Finding the Fourth Proportional to 1,404.89, 2,107.55 and 527.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.89 : 2,107.55 = 527.69 : x
2. Step 2: Convert to fraction form
   1,404.89/2,107.55 = 527.69/x
3. Step 3: Cross multiply
   1,404.89x = 2,107.55 × 527.69
4. Step 4: Simplify right side
   1,404.89x = 1,112,139.65
5. Step 5: Solve for x
   x = 1,112,139.65/1,404.89
6. Step 6: Final answer
   x = 791.62