Finding the Fourth Proportional to 1,097,870.34, 1,645,541.88 and 423,653.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,097,870.34 : 1,645,541.88 = 423,653.49 : x
2. Step 2: Convert to fraction form
   1,097,870.34/1,645,541.88 = 423,653.49/x
3. Step 3: Cross multiply
   1,097,870.34x = 1,645,541.88 × 423,653.49
4. Step 4: Simplify right side
   1,097,870.34x = 697,139,560,403.16
5. Step 5: Solve for x
   x = 697,139,560,403.16/1,097,870.34
6. Step 6: Final answer
   x = 634,992.62