Finding the Fourth Proportional to 776,142.98, 1,164,406.69 and 371,642.98

Step by Step Solution

1. Step 1: Write the proportion equation
   776,142.98 : 1,164,406.69 = 371,642.98 : x
2. Step 2: Convert to fraction form
   776,142.98/1,164,406.69 = 371,642.98/x
3. Step 3: Cross multiply
   776,142.98x = 1,164,406.69 × 371,642.98
4. Step 4: Simplify right side
   776,142.98x = 432,743,574,123.60
5. Step 5: Solve for x
   x = 432,743,574,123.60/776,142.98
6. Step 6: Final answer
   x = 557,556.51