Finding the Fourth Proportional to 2,105,209.08, 2,905,186.50 and 1,138,337.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,209.08 : 2,905,186.50 = 1,138,337.10 : x
2. Step 2: Convert to fraction form
   2,105,209.08/2,905,186.50 = 1,138,337.10/x
3. Step 3: Cross multiply
   2,105,209.08x = 2,905,186.50 × 1,138,337.10
4. Step 4: Simplify right side
   2,105,209.08x = 3,307,081,575,369.15
5. Step 5: Solve for x
   x = 3,307,081,575,369.15/2,105,209.08
6. Step 6: Final answer
   x = 1,570,904.10