Finding the Fourth Proportional to 2,865,047.31, 3,955,399.43 and 1,899,485.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,865,047.31 : 3,955,399.43 = 1,899,485.43 : x
2. Step 2: Convert to fraction form
   2,865,047.31/3,955,399.43 = 1,899,485.43/x
3. Step 3: Cross multiply
   2,865,047.31x = 3,955,399.43 × 1,899,485.43
4. Step 4: Simplify right side
   2,865,047.31x = 7,513,223,577,617.88
5. Step 5: Solve for x
   x = 7,513,223,577,617.88/2,865,047.31
6. Step 6: Final answer
   x = 2,622,373.30