Finding the Fourth Proportional to 1,454,436, 2,181,890.34 and 429,870.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,454,436 : 2,181,890.34 = 429,870.24 : x
2. Step 2: Convert to fraction form
   1,454,436/2,181,890.34 = 429,870.24/x
3. Step 3: Cross multiply
   1,454,436x = 2,181,890.34 × 429,870.24
4. Step 4: Simplify right side
   1,454,436x = 937,929,724,109.48
5. Step 5: Solve for x
   x = 937,929,724,109.48/1,454,436
6. Step 6: Final answer
   x = 644,875.21