Finding the Fourth Proportional to 1,229,603,820.76, 1,844,404,285.59 and 400,556,106.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,229,603,820.76 : 1,844,404,285.59 = 400,556,106.79 : x
2. Step 2: Convert to fraction form
   1,229,603,820.76/1,844,404,285.59 = 400,556,106.79/x
3. Step 3: Cross multiply
   1,229,603,820.76x = 1,844,404,285.59 × 400,556,106.79
4. Step 4: Simplify right side
   1,229,603,820.76x = 738,787,399,982,721,664
5. Step 5: Solve for x
   x = 738,787,399,982,721,664/1,229,603,820.76
6. Step 6: Final answer
   x = 600,833,689.28