Finding the Fourth Proportional to 2,580,500.77, 3,869,256.70 and 874,072.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,580,500.77 : 3,869,256.70 = 874,072.15 : x
2. Step 2: Convert to fraction form
   2,580,500.77/3,869,256.70 = 874,072.15/x
3. Step 3: Cross multiply
   2,580,500.77x = 3,869,256.70 × 874,072.15
4. Step 4: Simplify right side
   2,580,500.77x = 3,382,009,522,670.91
5. Step 5: Solve for x
   x = 3,382,009,522,670.91/2,580,500.77
6. Step 6: Final answer
   x = 1,310,602.02