Finding the Fourth Proportional to 2,158,185.60, 3,237,667.20 and 896,140.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,185.60 : 3,237,667.20 = 896,140.80 : x
2. Step 2: Convert to fraction form
   2,158,185.60/3,237,667.20 = 896,140.80/x
3. Step 3: Cross multiply
   2,158,185.60x = 3,237,667.20 × 896,140.80
4. Step 4: Simplify right side
   2,158,185.60x = 2,901,405,674,741.76
5. Step 5: Solve for x
   x = 2,901,405,674,741.76/2,158,185.60
6. Step 6: Final answer
   x = 1,344,372.64