Finding the Fourth Proportional to 3,621,196.94, 5,430,368.99 and 1,315,144.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,621,196.94 : 5,430,368.99 = 1,315,144.86 : x
2. Step 2: Convert to fraction form
   3,621,196.94/5,430,368.99 = 1,315,144.86/x
3. Step 3: Cross multiply
   3,621,196.94x = 5,430,368.99 × 1,315,144.86
4. Step 4: Simplify right side
   3,621,196.94x = 7,141,721,848,025.87
5. Step 5: Solve for x
   x = 7,141,721,848,025.87/3,621,196.94
6. Step 6: Final answer
   x = 1,972,199.24