Finding the Fourth Proportional to 1,384.04, 1,906.10 and 1,149.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,384.04 : 1,906.10 = 1,149.02 : x
2. Step 2: Convert to fraction form
   1,384.04/1,906.10 = 1,149.02/x
3. Step 3: Cross multiply
   1,384.04x = 1,906.10 × 1,149.02
4. Step 4: Simplify right side
   1,384.04x = 2,190,147.02
5. Step 5: Solve for x
   x = 2,190,147.02/1,384.04
6. Step 6: Final answer
   x = 1,582.43