Finding the Fourth Proportional to 1,391,106.02, 2,086,273.50 and 492,429.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,391,106.02 : 2,086,273.50 = 492,429.46 : x
2. Step 2: Convert to fraction form
   1,391,106.02/2,086,273.50 = 492,429.46/x
3. Step 3: Cross multiply
   1,391,106.02x = 2,086,273.50 × 492,429.46
4. Step 4: Simplify right side
   1,391,106.02x = 1,027,342,533,017.31
5. Step 5: Solve for x
   x = 1,027,342,533,017.31/1,391,106.02
6. Step 6: Final answer
   x = 738,507.72