Finding the Fourth Proportional to 2,111,390.48, 2,911,837.54 and 1,646,359.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111,390.48 : 2,911,837.54 = 1,646,359.63 : x
2. Step 2: Convert to fraction form
   2,111,390.48/2,911,837.54 = 1,646,359.63/x
3. Step 3: Cross multiply
   2,111,390.48x = 2,911,837.54 × 1,646,359.63
4. Step 4: Simplify right side
   2,111,390.48x = 4,793,931,756,299.42
5. Step 5: Solve for x
   x = 4,793,931,756,299.42/2,111,390.48
6. Step 6: Final answer
   x = 2,270,509.32