Finding the Fourth Proportional to 1,374.40, 1,896.77 and 784.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,374.40 : 1,896.77 = 784.99 : x
2. Step 2: Convert to fraction form
   1,374.40/1,896.77 = 784.99/x
3. Step 3: Cross multiply
   1,374.40x = 1,896.77 × 784.99
4. Step 4: Simplify right side
   1,374.40x = 1,488,932.07
5. Step 5: Solve for x
   x = 1,488,932.07/1,374.40
6. Step 6: Final answer
   x = 1,083.34