Finding the Fourth Proportional to 2,152,189.12, 2,970,155.31 and 1,185,319.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,152,189.12 : 2,970,155.31 = 1,185,319.16 : x
2. Step 2: Convert to fraction form
   2,152,189.12/2,970,155.31 = 1,185,319.16/x
3. Step 3: Cross multiply
   2,152,189.12x = 2,970,155.31 × 1,185,319.16
4. Step 4: Simplify right side
   2,152,189.12x = 3,520,581,977,823.02
5. Step 5: Solve for x
   x = 3,520,581,977,823.02/2,152,189.12
6. Step 6: Final answer
   x = 1,635,814.41