Finding the Fourth Proportional to 1,401.24, 2,100.94 and 785.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.24 : 2,100.94 = 785.02 : x
2. Step 2: Convert to fraction form
   1,401.24/2,100.94 = 785.02/x
3. Step 3: Cross multiply
   1,401.24x = 2,100.94 × 785.02
4. Step 4: Simplify right side
   1,401.24x = 1,649,279.92
5. Step 5: Solve for x
   x = 1,649,279.92/1,401.24
6. Step 6: Final answer
   x = 1,177.01