Finding the Fourth Proportional to 1,377.63, 1,900.50 and 959.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,377.63 : 1,900.50 = 959.01 : x
2. Step 2: Convert to fraction form
   1,377.63/1,900.50 = 959.01/x
3. Step 3: Cross multiply
   1,377.63x = 1,900.50 × 959.01
4. Step 4: Simplify right side
   1,377.63x = 1,822,598.51
5. Step 5: Solve for x
   x = 1,822,598.51/1,377.63
6. Step 6: Final answer
   x = 1,323.00