Finding the Fourth Proportional to 1,337.47, 1,845.71 and 777.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,337.47 : 1,845.71 = 777.95 : x
2. Step 2: Convert to fraction form
   1,337.47/1,845.71 = 777.95/x
3. Step 3: Cross multiply
   1,337.47x = 1,845.71 × 777.95
4. Step 4: Simplify right side
   1,337.47x = 1,435,876.65
5. Step 5: Solve for x
   x = 1,435,876.65/1,337.47
6. Step 6: Final answer
   x = 1,073.58