Finding the Fourth Proportional to 1,763.81, 2,433.83 and 977.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,763.81 : 2,433.83 = 977.86 : x
2. Step 2: Convert to fraction form
   1,763.81/2,433.83 = 977.86/x
3. Step 3: Cross multiply
   1,763.81x = 2,433.83 × 977.86
4. Step 4: Simplify right side
   1,763.81x = 2,379,932.83
5. Step 5: Solve for x
   x = 2,379,932.83/1,763.81
6. Step 6: Final answer
   x = 1,349.32