Finding the Fourth Proportional to 2,083.32, 3,126.20 and 784.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.32 : 3,126.20 = 784.89 : x
2. Step 2: Convert to fraction form
   2,083.32/3,126.20 = 784.89/x
3. Step 3: Cross multiply
   2,083.32x = 3,126.20 × 784.89
4. Step 4: Simplify right side
   2,083.32x = 2,453,719.19
5. Step 5: Solve for x
   x = 2,453,719.19/2,083.32
6. Step 6: Final answer
   x = 1,177.79