Finding the Fourth Proportional to 1,337.55, 1,845.30 and 777.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,337.55 : 1,845.30 = 777.93 : x
2. Step 2: Convert to fraction form
   1,337.55/1,845.30 = 777.93/x
3. Step 3: Cross multiply
   1,337.55x = 1,845.30 × 777.93
4. Step 4: Simplify right side
   1,337.55x = 1,435,514.23
5. Step 5: Solve for x
   x = 1,435,514.23/1,337.55
6. Step 6: Final answer
   x = 1,073.24