Finding the Fourth Proportional to 898,514.28, 1,348,092.32 and 385,964.10

Step by Step Solution

1. Step 1: Write the proportion equation
   898,514.28 : 1,348,092.32 = 385,964.10 : x
2. Step 2: Convert to fraction form
   898,514.28/1,348,092.32 = 385,964.10/x
3. Step 3: Cross multiply
   898,514.28x = 1,348,092.32 × 385,964.10
4. Step 4: Simplify right side
   898,514.28x = 520,315,237,075.89
5. Step 5: Solve for x
   x = 520,315,237,075.89/898,514.28
6. Step 6: Final answer
   x = 579,083.99