Finding the Fourth Proportional to 2,144,090.88, 3,216,602.88 and 648,144

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144,090.88 : 3,216,602.88 = 648,144 : x
2. Step 2: Convert to fraction form
   2,144,090.88/3,216,602.88 = 648,144/x
3. Step 3: Cross multiply
   2,144,090.88x = 3,216,602.88 × 648,144
4. Step 4: Simplify right side
   2,144,090.88x = 2,084,821,857,054.72
5. Step 5: Solve for x
   x = 2,084,821,857,054.72/2,144,090.88
6. Step 6: Final answer
   x = 972,357.04