Finding the Fourth Proportional to 2,087,123.20, 3,133,017.60 and 1,615,897.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087,123.20 : 3,133,017.60 = 1,615,897.60 : x
2. Step 2: Convert to fraction form
   2,087,123.20/3,133,017.60 = 1,615,897.60/x
3. Step 3: Cross multiply
   2,087,123.20x = 3,133,017.60 × 1,615,897.60
4. Step 4: Simplify right side
   2,087,123.20x = 5,062,635,620,597.76
5. Step 5: Solve for x
   x = 5,062,635,620,597.76/2,087,123.20
6. Step 6: Final answer
   x = 2,425,652.51