Finding the Fourth Proportional to 1,413.40, 1,950.51 and 783.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,413.40 : 1,950.51 = 783.94 : x
2. Step 2: Convert to fraction form
   1,413.40/1,950.51 = 783.94/x
3. Step 3: Cross multiply
   1,413.40x = 1,950.51 × 783.94
4. Step 4: Simplify right side
   1,413.40x = 1,529,082.31
5. Step 5: Solve for x
   x = 1,529,082.31/1,413.40
6. Step 6: Final answer
   x = 1,081.85