Finding the Fourth Proportional to 2,189,088.72, 3,281,400.72 and 1,240,455.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189,088.72 : 3,281,400.72 = 1,240,455.60 : x
2. Step 2: Convert to fraction form
   2,189,088.72/3,281,400.72 = 1,240,455.60/x
3. Step 3: Cross multiply
   2,189,088.72x = 3,281,400.72 × 1,240,455.60
4. Step 4: Simplify right side
   2,189,088.72x = 4,070,431,898,968.03
5. Step 5: Solve for x
   x = 4,070,431,898,968.03/2,189,088.72
6. Step 6: Final answer
   x = 1,859,418.42