Finding the Fourth Proportional to 1,137.42, 1,705.20 and 1,046.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,137.42 : 1,705.20 = 1,046.30 : x
2. Step 2: Convert to fraction form
   1,137.42/1,705.20 = 1,046.30/x
3. Step 3: Cross multiply
   1,137.42x = 1,705.20 × 1,046.30
4. Step 4: Simplify right side
   1,137.42x = 1,784,150.76
5. Step 5: Solve for x
   x = 1,784,150.76/1,137.42
6. Step 6: Final answer
   x = 1,568.59