Finding the Fourth Proportional to 1,243,404.58, 1,865,106.76 and 344,846.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243,404.58 : 1,865,106.76 = 344,846.30 : x
2. Step 2: Convert to fraction form
   1,243,404.58/1,865,106.76 = 344,846.30/x
3. Step 3: Cross multiply
   1,243,404.58x = 1,865,106.76 × 344,846.30
4. Step 4: Simplify right side
   1,243,404.58x = 643,175,154,241.22
5. Step 5: Solve for x
   x = 643,175,154,241.22/1,243,404.58
6. Step 6: Final answer
   x = 517,269.41