Finding the Fourth Proportional to 943,838.72, 1,302,499.20 and 561,878.72

Step by Step Solution

1. Step 1: Write the proportion equation
   943,838.72 : 1,302,499.20 = 561,878.72 : x
2. Step 2: Convert to fraction form
   943,838.72/1,302,499.20 = 561,878.72/x
3. Step 3: Cross multiply
   943,838.72x = 1,302,499.20 × 561,878.72
4. Step 4: Simplify right side
   943,838.72x = 731,846,583,297.02
5. Step 5: Solve for x
   x = 731,846,583,297.02/943,838.72
6. Step 6: Final answer
   x = 775,393.69