Finding the Fourth Proportional to 1,778.02, 2,450.73 and 1,188.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,778.02 : 2,450.73 = 1,188.34 : x
2. Step 2: Convert to fraction form
   1,778.02/2,450.73 = 1,188.34/x
3. Step 3: Cross multiply
   1,778.02x = 2,450.73 × 1,188.34
4. Step 4: Simplify right side
   1,778.02x = 2,912,300.49
5. Step 5: Solve for x
   x = 2,912,300.49/1,778.02
6. Step 6: Final answer
   x = 1,637.95