Finding the Fourth Proportional to 891,796.10, 1,337,694.15 and 419,404.10

Step by Step Solution

1. Step 1: Write the proportion equation
   891,796.10 : 1,337,694.15 = 419,404.10 : x
2. Step 2: Convert to fraction form
   891,796.10/1,337,694.15 = 419,404.10/x
3. Step 3: Cross multiply
   891,796.10x = 1,337,694.15 × 419,404.10
4. Step 4: Simplify right side
   891,796.10x = 561,034,411,056.02
5. Step 5: Solve for x
   x = 561,034,411,056.02/891,796.10
6. Step 6: Final answer
   x = 629,106.15