Finding the Fourth Proportional to 1,626.96, 2,438.89 and 1,477.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,626.96 : 2,438.89 = 1,477.80 : x
2. Step 2: Convert to fraction form
   1,626.96/2,438.89 = 1,477.80/x
3. Step 3: Cross multiply
   1,626.96x = 2,438.89 × 1,477.80
4. Step 4: Simplify right side
   1,626.96x = 3,604,172.06
5. Step 5: Solve for x
   x = 3,604,172.06/1,626.96
6. Step 6: Final answer
   x = 2,215.29