Finding the Fourth Proportional to 1,373.79, 1,895.78 and 784.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,373.79 : 1,895.78 = 784.32 : x
2. Step 2: Convert to fraction form
   1,373.79/1,895.78 = 784.32/x
3. Step 3: Cross multiply
   1,373.79x = 1,895.78 × 784.32
4. Step 4: Simplify right side
   1,373.79x = 1,486,898.81
5. Step 5: Solve for x
   x = 1,486,898.81/1,373.79
6. Step 6: Final answer
   x = 1,082.34