Finding the Fourth Proportional to 1,097,623.18, 1,646,425.52 and 857,938.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,097,623.18 : 1,646,425.52 = 857,938.69 : x
2. Step 2: Convert to fraction form
   1,097,623.18/1,646,425.52 = 857,938.69/x
3. Step 3: Cross multiply
   1,097,623.18x = 1,646,425.52 × 857,938.69
4. Step 4: Simplify right side
   1,097,623.18x = 1,412,532,151,840.15
5. Step 5: Solve for x
   x = 1,412,532,151,840.15/1,097,623.18
6. Step 6: Final answer
   x = 1,286,900.81