Finding the Fourth Proportional to 3,314.78, 4,973.10 and 1,123.67

Step by Step Solution

1. Step 1: Write the proportion equation
   3,314.78 : 4,973.10 = 1,123.67 : x
2. Step 2: Convert to fraction form
   3,314.78/4,973.10 = 1,123.67/x
3. Step 3: Cross multiply
   3,314.78x = 4,973.10 × 1,123.67
4. Step 4: Simplify right side
   3,314.78x = 5,588,131.50
5. Step 5: Solve for x
   x = 5,588,131.50/3,314.78
6. Step 6: Final answer
   x = 1,685.82