Finding the Fourth Proportional to 1,373.67, 1,895.75 and 784.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,373.67 : 1,895.75 = 784.40 : x
2. Step 2: Convert to fraction form
   1,373.67/1,895.75 = 784.40/x
3. Step 3: Cross multiply
   1,373.67x = 1,895.75 × 784.40
4. Step 4: Simplify right side
   1,373.67x = 1,487,026.30
5. Step 5: Solve for x
   x = 1,487,026.30/1,373.67
6. Step 6: Final answer
   x = 1,082.52