Finding the Fourth Proportional to 2,638,152.42, 3,956,630.85 and 1,339,988.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,638,152.42 : 3,956,630.85 = 1,339,988.91 : x
2. Step 2: Convert to fraction form
   2,638,152.42/3,956,630.85 = 1,339,988.91/x
3. Step 3: Cross multiply
   2,638,152.42x = 3,956,630.85 × 1,339,988.91
4. Step 4: Simplify right side
   2,638,152.42x = 5,301,841,459,963.87
5. Step 5: Solve for x
   x = 5,301,841,459,963.87/2,638,152.42
6. Step 6: Final answer
   x = 2,009,679.74