Finding the Fourth Proportional to 1,406.04, 1,955.83 and 1,379.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,406.04 : 1,955.83 = 1,379.31 : x
2. Step 2: Convert to fraction form
   1,406.04/1,955.83 = 1,379.31/x
3. Step 3: Cross multiply
   1,406.04x = 1,955.83 × 1,379.31
4. Step 4: Simplify right side
   1,406.04x = 2,697,686.10
5. Step 5: Solve for x
   x = 2,697,686.10/1,406.04
6. Step 6: Final answer
   x = 1,918.65