Finding the Fourth Proportional to 1,409.38, 1,945.01 and 788.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,409.38 : 1,945.01 = 788.38 : x
2. Step 2: Convert to fraction form
   1,409.38/1,945.01 = 788.38/x
3. Step 3: Cross multiply
   1,409.38x = 1,945.01 × 788.38
4. Step 4: Simplify right side
   1,409.38x = 1,533,406.98
5. Step 5: Solve for x
   x = 1,533,406.98/1,409.38
6. Step 6: Final answer
   x = 1,088.00