Finding the Fourth Proportional to 1,396.65, 1,940.01 and 1,374.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,396.65 : 1,940.01 = 1,374.32 : x
2. Step 2: Convert to fraction form
   1,396.65/1,940.01 = 1,374.32/x
3. Step 3: Cross multiply
   1,396.65x = 1,940.01 × 1,374.32
4. Step 4: Simplify right side
   1,396.65x = 2,666,200.04
5. Step 5: Solve for x
   x = 2,666,200.04/1,396.65
6. Step 6: Final answer
   x = 1,909.00