Finding the Fourth Proportional to 1,404.65, 2,106.81 and 624.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.65 : 2,106.81 = 624.67 : x
2. Step 2: Convert to fraction form
   1,404.65/2,106.81 = 624.67/x
3. Step 3: Cross multiply
   1,404.65x = 2,106.81 × 624.67
4. Step 4: Simplify right side
   1,404.65x = 1,316,061.00
5. Step 5: Solve for x
   x = 1,316,061.00/1,404.65
6. Step 6: Final answer
   x = 936.93