Finding the Fourth Proportional to 1,404.16, 1,938.15 and 844.65

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.16 : 1,938.15 = 844.65 : x
2. Step 2: Convert to fraction form
   1,404.16/1,938.15 = 844.65/x
3. Step 3: Cross multiply
   1,404.16x = 1,938.15 × 844.65
4. Step 4: Simplify right side
   1,404.16x = 1,637,066.22
5. Step 5: Solve for x
   x = 1,637,066.22/1,404.16
6. Step 6: Final answer
   x = 1,165.87