Finding the Fourth Proportional to 1,337.32, 1,845.54 and 777.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,337.32 : 1,845.54 = 777.88 : x
2. Step 2: Convert to fraction form
   1,337.32/1,845.54 = 777.88/x
3. Step 3: Cross multiply
   1,337.32x = 1,845.54 × 777.88
4. Step 4: Simplify right side
   1,337.32x = 1,435,608.66
5. Step 5: Solve for x
   x = 1,435,608.66/1,337.32
6. Step 6: Final answer
   x = 1,073.50