Finding the Fourth Proportional to 4,688.34, 7,032.78 and 1,225.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,688.34 : 7,032.78 = 1,225.50 : x
2. Step 2: Convert to fraction form
   4,688.34/7,032.78 = 1,225.50/x
3. Step 3: Cross multiply
   4,688.34x = 7,032.78 × 1,225.50
4. Step 4: Simplify right side
   4,688.34x = 8,618,671.89
5. Step 5: Solve for x
   x = 8,618,671.89/4,688.34
6. Step 6: Final answer
   x = 1,838.32