Finding the Fourth Proportional to 2,105,242.72, 2,905,232.92 and 1,138,370.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,242.72 : 2,905,232.92 = 1,138,370.71 : x
2. Step 2: Convert to fraction form
   2,105,242.72/2,905,232.92 = 1,138,370.71/x
3. Step 3: Cross multiply
   2,105,242.72x = 2,905,232.92 × 1,138,370.71
4. Step 4: Simplify right side
   2,105,242.72x = 3,307,232,061,855.77
5. Step 5: Solve for x
   x = 3,307,232,061,855.77/2,105,242.72
6. Step 6: Final answer
   x = 1,570,950.48