Finding the Fourth Proportional to 3,406,915.90, 5,111,079.15 and 1,385,160.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,406,915.90 : 5,111,079.15 = 1,385,160.15 : x
2. Step 2: Convert to fraction form
   3,406,915.90/5,111,079.15 = 1,385,160.15/x
3. Step 3: Cross multiply
   3,406,915.90x = 5,111,079.15 × 1,385,160.15
4. Step 4: Simplify right side
   3,406,915.90x = 7,079,663,167,270.22
5. Step 5: Solve for x
   x = 7,079,663,167,270.22/3,406,915.90
6. Step 6: Final answer
   x = 2,078,026.98