Finding the Fourth Proportional to 1,384.02, 1,907.46 and 1,010.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,384.02 : 1,907.46 = 1,010.34 : x
2. Step 2: Convert to fraction form
   1,384.02/1,907.46 = 1,010.34/x
3. Step 3: Cross multiply
   1,384.02x = 1,907.46 × 1,010.34
4. Step 4: Simplify right side
   1,384.02x = 1,927,183.14
5. Step 5: Solve for x
   x = 1,927,183.14/1,384.02
6. Step 6: Final answer
   x = 1,392.45