Finding the Fourth Proportional to 1,404.56, 1,938.16 and 783.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.56 : 1,938.16 = 783.52 : x
2. Step 2: Convert to fraction form
   1,404.56/1,938.16 = 783.52/x
3. Step 3: Cross multiply
   1,404.56x = 1,938.16 × 783.52
4. Step 4: Simplify right side
   1,404.56x = 1,518,587.12
5. Step 5: Solve for x
   x = 1,518,587.12/1,404.56
6. Step 6: Final answer
   x = 1,081.18