Finding the Fourth Proportional to 1,400.69, 2,101.37 and 784.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,400.69 : 2,101.37 = 784.82 : x
2. Step 2: Convert to fraction form
   1,400.69/2,101.37 = 784.82/x
3. Step 3: Cross multiply
   1,400.69x = 2,101.37 × 784.82
4. Step 4: Simplify right side
   1,400.69x = 1,649,200.74
5. Step 5: Solve for x
   x = 1,649,200.74/1,400.69
6. Step 6: Final answer
   x = 1,177.42