Finding the Fourth Proportional to 1,491,426, 2,058,167.88 and 812,362.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,491,426 : 2,058,167.88 = 812,362.50 : x
2. Step 2: Convert to fraction form
   1,491,426/2,058,167.88 = 812,362.50/x
3. Step 3: Cross multiply
   1,491,426x = 2,058,167.88 × 812,362.50
4. Step 4: Simplify right side
   1,491,426x = 1,671,978,404,416.50
5. Step 5: Solve for x
   x = 1,671,978,404,416.50/1,491,426
6. Step 6: Final answer
   x = 1,121,060.25