Finding the Fourth Proportional to 1,391.02, 1,920.00 and 1,037.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,391.02 : 1,920.00 = 1,037.00 : x
2. Step 2: Convert to fraction form
   1,391.02/1,920.00 = 1,037.00/x
3. Step 3: Cross multiply
   1,391.02x = 1,920.00 × 1,037.00
4. Step 4: Simplify right side
   1,391.02x = 1,991,048.69
5. Step 5: Solve for x
   x = 1,991,048.69/1,391.02
6. Step 6: Final answer
   x = 1,431.36